@article{https://authors.library.caltech.edu/records/8apkf-58a13,
    authors = "Jia, Zhe and Zhan, Zhongwen and Helmberger, Donald",
    title = "Bayesian differential moment tensor inversion: theory and application to the North Korea nuclear tests",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "2022",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20220503-182318528",
    id = "https://authors.library.caltech.edu/records/8apkf-58a13",
    issn = "0956-540X",
    doi = "10.1093/gji/ggac053",
    volume = "229",
    number = "3",
    pages = "2034-2046"
}


@article{https://authors.library.caltech.edu/records/f86nv-haj59,
    authors = "Lai, Voon Hui and Helmberger, Don V. and Dobrosavljevic, Vasilije V. and Wu, Wenbo and Sun, Daoyuan and Jackson, Jennifer M. and Gurnis, Michael",
    title = "Strong ULVZ and Slab Interaction at the Northeastern Edge of the Pacific LLSVP Favors Plume Generation",
    journal = "Geochemistry, Geophysics, Geosystems",
    publisher = "American Geophysical Union",
    year = "2022",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20220309-676533000",
    id = "https://authors.library.caltech.edu/records/f86nv-haj59",
    issn = "1525-2027",
    doi = "10.1029/2021gc010020",
    volume = "23",
    number = "2",
    pages = "Art. No. e2021GC010020"
}


@article{https://authors.library.caltech.edu/records/684br-87w29,
    authors = "Lai, Voon Hui and Graves, Robert W. and Yu, Chunquan and Zhan, Zhongwen and Helmberger, Don V.",
    title = "Shallow Basin Structure and Attenuation Are Key to Predicting Long Shaking Duration in Los Angeles Basin",
    journal = "Journal of Geophysical Research. Solid Earth",
    publisher = "American Geophysical Union",
    year = "2020",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20200930-144714950",
    id = "https://authors.library.caltech.edu/records/684br-87w29",
    issn = "2169-9313",
    doi = "10.1029/2020jb019663",
    volume = "125",
    number = "10",
    pages = "Art. No. e2020JB019663"
}


@article{https://authors.library.caltech.edu/records/ndjv4-t0b44,
    authors = "Yu, Chunquan and Hauksson, Egill and Zhan, Zhongwen and Cochran, Elizabeth S. and Helmberger, Donald V.",
    title = "Depth Determination of the 2010 El Mayor‐Cucapah Earthquake Sequence (M≥4.0)",
    journal = "Journal of Geophysical Research. Solid Earth",
    publisher = "American Geophysical Union",
    year = "2019",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190702-074604162",
    id = "https://authors.library.caltech.edu/records/ndjv4-t0b44",
    issn = "2169-9313",
    doi = "10.1029/2018jb016982",
    volume = "124",
    number = "7",
    pages = "6801-6814"
}


@article{https://authors.library.caltech.edu/records/v6rv0-f5b20,
    authors = "Yu, Chunquan and Zhan, Zhongwen and Hauksson, Egill and Cochran, Elizabeth S. and Helmberger, Donald V.",
    title = "Determining Moho Depth beneath Sedimentary Basins Using Regional Pn Multiples",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2019",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190508-082435371",
    id = "https://authors.library.caltech.edu/records/v6rv0-f5b20",
    issn = "0037-1106",
    doi = "10.1785/0120180325",
    volume = "109",
    number = "3",
    pages = "1171-1179"
}


@article{https://authors.library.caltech.edu/records/bq9j6-dbz27,
    authors = "Sun, D. and Helmberger, D. and Lai, V. H. and Gurnis, M. and Jackson, J. M. and Yang, H.-Y.",
    title = "Slab Control on the Northeastern Edge of the Mid-Pacific LLSVP near Hawaii",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2019",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190215-152553385",
    id = "https://authors.library.caltech.edu/records/bq9j6-dbz27",
    issn = "0094-8276",
    doi = "10.1029/2018GL081130",
    volume = "46",
    number = "6",
    pages = "3142-3152"
}


@article{https://authors.library.caltech.edu/records/dw19d-7re59,
    authors = "Wei, Shengji and Chen, Meng and Wang, Xin and Graves, Robert and Lindsey, Eric and Wang, Teng and Karakaş, Çağıl and Helmberger, Don",
    title = "The 2015 Gorkha (Nepal) earthquake sequence: I. Source modeling and deterministic 3D ground shaking",
    journal = "Tectonophysics",
    publisher = "Elsevier",
    year = "2018",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20180314-105805436",
    id = "https://authors.library.caltech.edu/records/dw19d-7re59",
    issn = "0040-1951",
    doi = "10.1016/j.tecto.2017.11.024",
    volume = "722",
    pages = "447-461"
}


@article{https://authors.library.caltech.edu/records/1fjjv-3h971,
    authors = "Ko, Justin Yen-Ting and Helmberger, Don V. and Wang, Huilin and Zhan, Zhongwen",
    title = "Lower-mantle Substructure Embedded in the Farallon Plate: The Hess Conjugate",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2017",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20171002-081952835",
    id = "https://authors.library.caltech.edu/records/1fjjv-3h971",
    issn = "0094-8276",
    doi = "10.1002/2017GL075032",
    volume = "44",
    number = "20",
    pages = "10216-10225"
}


@article{https://authors.library.caltech.edu/records/8rwpq-nak13,
    authors = "Chu, Risheng and Ko, Justin Yen-Ting and Wei, Shengji and Zhan, Zhongwen and Helmberger, Don",
    title = "Lithospheric radial anisotropy beneath the Gulf of Mexico",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2017",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170317-142305531",
    id = "https://authors.library.caltech.edu/records/8rwpq-nak13",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2017.02.040",
    volume = "466",
    pages = "43-52"
}


@article{https://authors.library.caltech.edu/records/cctqn-11506,
    authors = "Lai, Voon Hui and Graves, Robert W. and Wei, Shengji and Helmberger, Don",
    title = "Evidence for strong lateral seismic velocity variation in the lower crust and upper mantle beneath the California margin",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2017",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170303-085007254",
    id = "https://authors.library.caltech.edu/records/cctqn-11506",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2017.02.002",
    volume = "463",
    pages = "202-211"
}


@article{https://authors.library.caltech.edu/records/nsn41-56918,
    authors = "Sun, Daoyuan and Gurnis, Michael and Saleeby, Jason and Helmberger, Don",
    title = "A dipping, thick segment of the Farallon Slab beneath Central US",
    journal = "Journal of Geophysical Research. Solid Earth",
    publisher = "American Geophysical Union",
    year = "2017",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170329-090559845",
    id = "https://authors.library.caltech.edu/records/nsn41-56918",
    issn = "2169-9313",
    doi = "10.1002/2016JB013915",
    volume = "122",
    number = "4",
    pages = "2911-2928"
}


@article{https://authors.library.caltech.edu/records/egpac-h1h70,
    authors = "Lui, Semechah K. Y. and Helmberger, Don and Yu, Junjie and Wei, Shengji",
    title = "Rapid Assessment of Earthquake Source Characteristics",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2016",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20161202-145512241",
    id = "https://authors.library.caltech.edu/records/egpac-h1h70",
    issn = "0037-1106",
    doi = "10.1785/0120160112",
    volume = "106",
    number = "6",
    pages = "2490-2499"
}


@article{https://authors.library.caltech.edu/records/8kfs9-myh02,
    authors = "Sun, Daoyuan and Helmberger, Don and Miller, Meghan S. and Jackson, Jennifer M.",
    title = "Major disruption of D″ beneath Alaska",
    journal = "Journal of Geophysical Research: Solid Earth",
    publisher = "American Geophysical Union",
    year = "2016",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20160623-120036564",
    id = "https://authors.library.caltech.edu/records/8kfs9-myh02",
    issn = "0148-0227",
    doi = "10.1002/2015JB012534",
    volume = "121",
    number = "5",
    pages = "3534-3556"
}


@article{https://authors.library.caltech.edu/records/9jedj-8jh46,
    authors = "Huang, Yihe and Ampuero, Jean-Paul and Helmberger, Don V.",
    title = "The potential for supershear earthquakes in damaged fault zones – theory and observations",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2016",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20160114-114621459",
    id = "https://authors.library.caltech.edu/records/9jedj-8jh46",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2015.10.046",
    volume = "433",
    pages = "109-115"
}


@article{https://authors.library.caltech.edu/records/f2nfz-we798,
    authors = "Lui, Semechah K. Y. and Helmberger, Don and Wei, Shengji and Huang, Yihe and Graves, Robert W.",
    title = "Interrogation of the Megathrust Zone in the Tohoku-Oki Seismic Region by Waveform Complexity: Intraslab Earthquake Rupture and Reactivation of Subducted Normal Faults",
    journal = "Pure and Applied Geophysics",
    publisher = "Springer",
    year = "2015",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150515-093906670",
    id = "https://authors.library.caltech.edu/records/f2nfz-we798",
    issn = "0033-4553",
    doi = "10.1007/s00024-015-1042-9",
    volume = "172",
    number = "12",
    pages = "3425-3437"
}


@article{https://authors.library.caltech.edu/records/qt3cj-11b27,
    authors = "Wei, Shengji and Avouac, Jean-Philippe and Hudnut, Kenneth W. and Donnellan, Andrea and Parker, Jay W. and Graves, Robert W. and Helmberger, Don and Fielding, Eric and Liu, Zhen and Cappa, Frederic and Eneva, Mariana",
    title = "The 2012 Brawley swarm triggered by injection-induced aseismic slip",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2015",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150429-104726958",
    id = "https://authors.library.caltech.edu/records/qt3cj-11b27",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2015.03.054",
    volume = "422",
    pages = "115-125"
}


@article{https://authors.library.caltech.edu/records/zctks-m3t13,
    authors = "Wei, Shengji and Barbot, Sylvain and Graves, Robert and Lienkaemper, James J. and Wang, Teng and Hudnut, Kenneth and Fu, Yuning and Helmberger, Don",
    title = "The 2014 M\_w 6.1 South Napa Earthquake: A Unilateral Rupture with Shallow Asperity and Rapid Afterslip",
    journal = "Seismological Research Letters",
    publisher = "Seismological Society of America",
    year = "2015",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150417-120038001",
    id = "https://authors.library.caltech.edu/records/zctks-m3t13",
    issn = "0895-0695",
    doi = "10.1785/0220140249",
    volume = "86",
    number = "2A",
    pages = "344-354"
}


@article{https://authors.library.caltech.edu/records/n8hp7-8xz81,
    authors = "Chu, Risheng and Helmberger, Don and Gurnis, Michael",
    title = "Upper mantle surprises derived from the recent Virginia earthquake waveform data",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20141002-102959367",
    id = "https://authors.library.caltech.edu/records/n8hp7-8xz81",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2012.10.023",
    volume = "402",
    pages = "167-175"
}


@article{https://authors.library.caltech.edu/records/njbqe-why46,
    authors = "Li, Dunzhu and Sun, Daoyuan and Helmberger, Don",
    title = "Notes on the variability of reflected inner core phases",
    journal = "Earthquake Science",
    publisher = "Springer",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170616-103818655",
    id = "https://authors.library.caltech.edu/records/njbqe-why46",
    issn = "1674-4519",
    doi = "10.1007/s11589-014-0093-9",
    volume = "27",
    number = "4",
    pages = "441-468"
}


@article{https://authors.library.caltech.edu/records/9bdf9-g7v38,
    authors = "Zhan, Zhongwen and Helmberger, Donald V. and Kanamori, Hiroo and Shearer, Peter M.",
    title = "Supershear rupture in a M\_w 6.7 aftershock of the 2013 Sea of Okhotsk earthquake",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140815-120059262",
    id = "https://authors.library.caltech.edu/records/9bdf9-g7v38",
    issn = "0036-8075",
    doi = "10.1126/science.1252717",
    volume = "345",
    number = "6193",
    pages = "204-207"
}


@article{https://authors.library.caltech.edu/records/0tmwq-vwj93,
    authors = "Zhan, Zhongwen and Helmberger, Donald V. and Li, Dunzhu",
    title = "Imaging subducted slab structure beneath the Sea of Okhotsk with teleseismic waveforms",
    journal = "Physics of the Earth and Planetary Interiors",
    publisher = "Elsevier",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140725-091021610",
    id = "https://authors.library.caltech.edu/records/0tmwq-vwj93",
    issn = "0031-9201",
    doi = "10.1016/j.pepi.2014.03.008",
    volume = "232",
    pages = "30-35"
}


@article{https://authors.library.caltech.edu/records/bsgfe-6kq68,
    authors = "Chu, Risheng and Ni, Sidao and Pitarka, Arben and Helmberger, Don V.",
    title = "Inversion of Source Parameters for Moderate Earthquakes Using Short-Period Teleseismic P Waves",
    journal = "Pure and Applied Geophysics",
    publisher = "Springer",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140912-081609308",
    id = "https://authors.library.caltech.edu/records/bsgfe-6kq68",
    issn = "0033-4553",
    doi = "10.1007/s00024-013-0719-1",
    volume = "171",
    number = "7",
    pages = "1329-1341"
}


@article{https://authors.library.caltech.edu/records/cbxpn-p2d14,
    authors = "Li, Dunzhu and Helmberger, Don and Clayton, Robert W. and Sun, Daoyuan",
    title = "Global synthetic seismograms using a 2-D finite-difference method",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140602-124952161",
    id = "https://authors.library.caltech.edu/records/cbxpn-p2d14",
    issn = "0956-540X",
    doi = "10.1093/gji/ggu050",
    volume = "197",
    number = "2",
    pages = "1166-1183"
}


@article{https://authors.library.caltech.edu/records/vns81-2s029,
    authors = "Avouac, Jean-Philippe and Ayoub, François and Wei, Shengji and Ampuero, Jean-Paul and Meng, Lingsen and Leprince, Sébastien and Jolivet, Romain and Duputel, Zacharie and Helmberger, Don",
    title = "The 2013, Mw 7.7 Balochistan earthquake, energetic strike-slip reactivation of a thrust fault",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140509-070750779",
    id = "https://authors.library.caltech.edu/records/vns81-2s029",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2014.01.036",
    volume = "391",
    pages = "128-134"
}


@article{https://authors.library.caltech.edu/records/6tezq-1y104,
    authors = "Huang, Yihe and Ampuero, Jean-Paul and Helmberger, Don V.",
    title = "Earthquake ruptures modulated by waves in damaged fault zones",
    journal = "Journal of Geophysical Research. Solid Earth",
    publisher = "American Geophysical Union",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140724-145401306",
    id = "https://authors.library.caltech.edu/records/6tezq-1y104",
    issn = "2169-9313",
    doi = "10.1002/2013JB010724",
    volume = "119",
    number = "4",
    pages = "3133-3154"
}


@article{https://authors.library.caltech.edu/records/yaahm-rfj12,
    authors = "Chu, Risheng and Helmberger, Don",
    title = "Lithospheric waveguide beneath the Midwestern United States; massive low-velocity zone in the lower crust",
    journal = "Geochemistry, Geophysics, Geosystems",
    publisher = "American Geophysical Union",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140630-092950643",
    id = "https://authors.library.caltech.edu/records/yaahm-rfj12",
    issn = "1525-2027",
    doi = "10.1002/2013GC004914",
    volume = "15",
    number = "4",
    pages = "1348-1362"
}


@article{https://authors.library.caltech.edu/records/c0bq7-0m059,
    authors = "Zhan, Zhongwen and Tsai, Victor C. and Jackson, Jennifer M. and Helmberger, Don",
    title = "Ambient noise correlation on the Amery Ice Shelf, East Antarctica",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140403-102823691",
    id = "https://authors.library.caltech.edu/records/c0bq7-0m059",
    issn = "0956-540X",
    doi = "10.1093/gji/ggt488",
    volume = "196",
    number = "3",
    pages = "1796-1802"
}


@article{https://authors.library.caltech.edu/records/6a526-jnz31,
    authors = "Zhan, Zhongwen and Kanamori, Hiroo and Tsai, Victor C. and Helmberger, Donald V. and Wei, Shengji",
    title = "Rupture complexity of the 1994 Bolivia and 2013 Sea of Okhotsk deep earthquakes",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2014",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140313-091602304",
    id = "https://authors.library.caltech.edu/records/6a526-jnz31",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2013.10.028",
    volume = "385",
    pages = "89-96"
}


@article{https://authors.library.caltech.edu/records/9vsr5-8ag62,
    authors = "Chu, Risheng and Leng, Wei and Helmberger, Don V. and Gurnis, Michael",
    title = "Hidden hotspot track beneath the eastern United States",
    journal = "Nature Geoscience",
    publisher = "Nature Publishing Group",
    year = "2013",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20131203-111223741",
    id = "https://authors.library.caltech.edu/records/9vsr5-8ag62",
    issn = "1752-0894",
    doi = "10.1038/NGEO1949",
    volume = "6",
    number = "11",
    pages = "963-966"
}


@article{https://authors.library.caltech.edu/records/s1g81-8e324,
    authors = "Wei, Shengji and Helmberger, Don and Zhan, Zhongwen and Graves, Robert",
    title = "Rupture complexity of the M\_w 8.3 Sea of Okhotsk Earthquake: Rapid triggering of complementary earthquakes?",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2013",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20131121-092052360",
    id = "https://authors.library.caltech.edu/records/s1g81-8e324",
    issn = "0094-8276",
    doi = "10.1002/grl.50977",
    volume = "40",
    number = "19",
    pages = "5034-5039"
}


@article{https://authors.library.caltech.edu/records/fag14-b6q89,
    authors = "Wei, Shengji and Helmberger, Don and Avouac, Jean-Philippe",
    title = "Modeling the 2012 Wharton basin earthquakes off-Sumatra: Complete lithospheric failure",
    journal = "Journal of Geophysical Research. Solid Earth",
    publisher = "American Geophysical Union",
    year = "2013",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20131104-111155904",
    id = "https://authors.library.caltech.edu/records/fag14-b6q89",
    issn = "2169-9313",
    doi = "10.1002/jgrb.50267",
    volume = "118",
    number = "7",
    pages = "3592-3609"
}


@article{https://authors.library.caltech.edu/records/hv993-h8d08,
    authors = "Chu, Risheng and Helmberger, Don V.",
    title = "Source Parameters of the Shallow 2012 Brawley Earthquake, Imperial Valley",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2013",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130429-100412759",
    id = "https://authors.library.caltech.edu/records/hv993-h8d08",
    issn = "0037-1106",
    doi = "10.1785/0120120324",
    volume = "103",
    number = "2A",
    pages = "1141-1147"
}


@article{https://authors.library.caltech.edu/records/tbh64-cx393,
    authors = "Wei, Shengji and Helmberger, Don and Owen, Susan and Graves, Robert W. and Hudnut, Kenneth W. and Fielding, Eric J.",
    title = "Complementary slip distributions of the largest earthquakes in the 2012 Brawley swarm, Imperial Valley, California",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2013",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20131205-145703895",
    id = "https://authors.library.caltech.edu/records/tbh64-cx393",
    issn = "0094-8276",
    doi = "10.1002/grl.50259",
    volume = "40",
    number = "5",
    pages = "847-852"
}


@article{https://authors.library.caltech.edu/records/adtvy-fze27,
    authors = "Sun, Daoyuan and Helmberger, Don V. and Jackson, Jennifer M. and Clayton, Robert W. and Bower, Dan J.",
    title = "Rolling hills on the core–mantle boundary",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2013",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130318-110208034",
    id = "https://authors.library.caltech.edu/records/adtvy-fze27",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2012.10.027",
    volume = "361",
    pages = "333-342"
}


@article{https://authors.library.caltech.edu/records/rxk1g-cpj10,
    authors = "Zheng, Yong and Ni, Sidao and Chen, Yong and Tan, Ying and Helmberger, Don",
    title = "Magnitude and rupture duration from high frequency teleseismic P wave with projected landweber deconvolution",
    journal = "Science China Earth Sciences",
    publisher = "Springer",
    year = "2013",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130211-160850074",
    id = "https://authors.library.caltech.edu/records/rxk1g-cpj10",
    issn = "1674-7313",
    doi = "10.1007/s11430-012-4557-2",
    volume = "56",
    number = "1",
    pages = "13-21"
}


@article{https://authors.library.caltech.edu/records/r6pn8-vbx09,
    authors = "Zhan, Zhongwen and Helmberger, Don and Simons, Mark and Kanamori, Hiroo and Wu, Wenbo and Cubas, Nadaya and Duputel, Zacharie and Chu, Risheng and Tsai, Victor C. and Avouac, Jean-Philippe and Hudnut, Kenneth W. and Ni, Sidao and Hetland, Eric and Ortega Culaciati, Francisco H.",
    title = "Anomalously steep dips of earthquakes in the 2011 Tohoku-Oki source region and possible explanations",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2012",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121214-153612362",
    id = "https://authors.library.caltech.edu/records/r6pn8-vbx09",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2012.07.038",
    volume = "353-35",
    pages = "121-133"
}


@article{https://authors.library.caltech.edu/records/4kgad-m4z03,
    authors = "Dougherty, Sara L. and Clayton, Robert W. and Helmberger, Don V.",
    title = "Seismic structure in central Mexico: Implications for fragmentation of the subducted Cocos plate",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2012",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121005-155032242",
    id = "https://authors.library.caltech.edu/records/4kgad-m4z03",
    issn = "0148-0227",
    doi = "10.1029/2012JB009528",
    volume = "117",
    pages = "Art. No. B09316"
}


@article{https://authors.library.caltech.edu/records/714fj-kwe95,
    authors = "Wei, Shengji and Graves, Robert and Helmberger, Don and Avouac, Jean-Philippe and Jiang, Junle",
    title = "Sources of shaking and flooding during the Tohoku-Oki earthquake: A mixture of rupture styles",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2012",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20120827-114719257",
    id = "https://authors.library.caltech.edu/records/714fj-kwe95",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2012.04.006",
    volume = "333-334",
    pages = "91-100"
}


@article{https://authors.library.caltech.edu/records/q0s4d-h9p87,
    authors = "Wei, Shengji and Zhan, Zhongwen and Tan, Ying and Ni, Sidao and Helmberger, Don",
    title = "Locating earthquakes with surface waves and centroid moment tensor estimation",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2012",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20120516-093035734",
    id = "https://authors.library.caltech.edu/records/q0s4d-h9p87",
    issn = "0148-0227",
    doi = "10.1029/2011JB008501",
    volume = "117",
    pages = "Art. No. B04309"
}


@article{https://authors.library.caltech.edu/records/w6nqy-7s360,
    authors = "Chu, Risheng and Schmandt, Brandon and Helmberger, Don V.",
    title = "Juan de Fuca subduction zone from a mixture of tomography and waveform modeling",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2012",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20120411-102851740",
    id = "https://authors.library.caltech.edu/records/w6nqy-7s360",
    issn = "0148-0227",
    doi = "10.1029/2012JB009146",
    volume = "117",
    number = "B3",
    pages = "Art. No. B03304"
}


@article{https://authors.library.caltech.edu/records/fade1-fgq07,
    authors = "Chu, Risheng and Schmandt, Brandon and Helmberger, Don V.",
    title = "Upper mantle P velocity structure beneath the Midwestern
 United States derived from triplicated waveforms",
    journal = "Geochemistry, Geophysics, Geosystems",
    publisher = "American Geophysical Union",
    year = "2012",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20120327-071913122",
    id = "https://authors.library.caltech.edu/records/fade1-fgq07",
    issn = "1525-2027",
    doi = "10.1029/2011GC003818",
    volume = "13",
    pages = "Art. No. Q0Ak04"
}


@article{https://authors.library.caltech.edu/records/mmpk9-h3m26,
    authors = "Wei, Shengji and Fielding, Eric and Leprince, Sébastien and Sladen, Anthony and Avouac, Jean-Philippe and Helmberger, Don and Hauksson, Egill and Chu, Risheng and Simons, Mark and Hudnut, Kenneth and Herring, Thomas and Briggs, Richard",
    title = "Superficial simplicity of the 2010 El Mayor–Cucapah earthquake of Baja California in Mexico",
    journal = "Nature Geoscience",
    publisher = "Nature Publishing Group",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20111006-084146589",
    id = "https://authors.library.caltech.edu/records/mmpk9-h3m26",
    issn = "1752-0894",
    doi = "10.1038/ngeo1213",
    volume = "4",
    number = "9",
    pages = "615-618"
}


@article{https://authors.library.caltech.edu/records/6n9hg-1zr81,
    authors = "Chu, Risheng and Wei, Shengji and Helmberger, Don. V. and Zhan, Zhongwen and Zhu, Lupei and Kanamori, Hiroo",
    title = "Initiation of the great M\_w 9.0 Tohoku–Oki earthquake",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110906-141014618",
    id = "https://authors.library.caltech.edu/records/6n9hg-1zr81",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2011.06.031",
    volume = "308",
    number = "3-4",
    pages = "277-283"
}


@article{https://authors.library.caltech.edu/records/5sgbk-y5a35,
    authors = "Simons, Mark and Minson, Sarah E. and Sladen, Anthony and Ortega, Francisco and Jiang, Junle and Owen, Susan E. and Meng, Lingsen and Ampuero, Jean-Paul and Wei, Shengji and Chu, Risheng and Helmberger, Donald V. and Kanamori, Hiroo and Hetland, Eric and Moore, Angelyn W. and Webb, Frank H.",
    title = "The 2011 Magnitude 9.0 Tohoku-Oki Earthquake: Mosaicking the Megathrust from Seconds to Centuries",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110628-105058184",
    id = "https://authors.library.caltech.edu/records/5sgbk-y5a35",
    issn = "0036-8075",
    doi = "10.1126/science.1206731",
    volume = "332",
    number = "6036",
    pages = "1421-1425"
}


@article{https://authors.library.caltech.edu/records/1tv1k-tse27,
    authors = "Zhan, Zhongwen and Wei, Shengji and Ni, Sidao and Helmberger, Don",
    title = "Earthquake Centroid Locations Using Calibration from Ambient Seismic Noise",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110613-103703524",
    id = "https://authors.library.caltech.edu/records/1tv1k-tse27",
    issn = "0037-1106",
    doi = "10.1785/0120100118",
    volume = "101",
    number = "3",
    pages = "1438-1445"
}


@article{https://authors.library.caltech.edu/records/yhg9p-8jx35,
    authors = "Liu, Lijun and Tan, Ying and Sun, Daoyuan and Chen, Min and Helmberger, Don",
    title = "Trans-Pacific whole mantle structure",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110509-110708842",
    id = "https://authors.library.caltech.edu/records/yhg9p-8jx35",
    issn = "0148-0227",
    doi = "10.1029/2010JB007907",
    volume = "116",
    number = "B4",
    pages = "B04306"
}


@article{https://authors.library.caltech.edu/records/d8cap-6ee09,
    authors = "Sun, Daoyuan and Helmberger, Don",
    title = "Upper-mantle structures beneath USArray derived from waveform complexity",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110304-082056247",
    id = "https://authors.library.caltech.edu/records/d8cap-6ee09",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.2010.04847.x",
    volume = "184",
    number = "1",
    pages = "416-438"
}


@article{https://authors.library.caltech.edu/records/ksnph-52515,
    authors = "Luo, Yan and Tan, Ying and Wei, Shengji and Helmberger, Don and Zhan, Zhongwen and Ni, Sidao and Hauksson, Egill and Chen, Yong",
    title = "Source Mechanism and Rupture Directivity of the 18 May 2009 M\_W 4.6 Inglewood, California, Earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110104-114334345",
    id = "https://authors.library.caltech.edu/records/ksnph-52515",
    issn = "0037-1106",
    doi = "10.1785/0120100087",
    volume = "100",
    number = "6",
    pages = "3269-3277"
}


@article{https://authors.library.caltech.edu/records/kaxjz-qmf30,
    authors = "Tan, Ying and Song, Alex and Wei, Shengji and Helmberger, Don",
    title = "Surface Wave Path Corrections and Source Inversions in Southern California",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110105-095232362",
    id = "https://authors.library.caltech.edu/records/kaxjz-qmf30",
    issn = "0037-1106",
    doi = "10.1785/0120090063",
    volume = "100",
    number = "6",
    pages = "2891-2904"
}


@article{https://authors.library.caltech.edu/records/q2zry-vzf70,
    authors = "Zhan, Zhongwen and Ni, Sidao and Helmberger, Don V. and Clayton, Robert W.",
    title = "Retrieval of Moho-reflected shear wave arrivals from ambient seismic noise",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20100629-165425794",
    id = "https://authors.library.caltech.edu/records/q2zry-vzf70",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.2010.04625.x",
    volume = "182",
    number = "1",
    pages = "408-420"
}


@article{https://authors.library.caltech.edu/records/40x4g-12z70,
    authors = "Tan, Ying and Helmberger, Don",
    title = "Rupture Directivity Characteristics of the 2003 Big Bear Sequence",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20100608-154755897",
    id = "https://authors.library.caltech.edu/records/40x4g-12z70",
    issn = "0037-1106",
    doi = "10.1785/0120090074",
    volume = "100",
    number = "3",
    pages = "1089-1106"
}


@article{https://authors.library.caltech.edu/records/pjq5w-j2q44,
    authors = "Sun, Daoyuan and Helmberger, Don and Gurnis, Michael",
    title = "A narrow, mid-mantle plume below southern Africa",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20100602-164912539",
    id = "https://authors.library.caltech.edu/records/pjq5w-j2q44",
    issn = "0094-8276",
    doi = "10.1029/2009GL042339",
    volume = "37",
    pages = "L09302"
}


@article{https://authors.library.caltech.edu/records/hbrjb-fk580,
    authors = "Ni, Sidao and Helmberger, Don and Pitarka, Arben",
    title = "Rapid Source Estimation from Global Calibrated Paths",
    journal = "Seismological Research Letters",
    publisher = "Seismological Society of America",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20100607-081917185",
    id = "https://authors.library.caltech.edu/records/hbrjb-fk580",
    issn = "0895-0695",
    doi = "10.1785/gssrl.81.3.498",
    volume = "81",
    number = "3",
    pages = "498-504"
}


@article{https://authors.library.caltech.edu/records/d6t66-66p49,
    authors = "Konca, A. Ozgun and Leprince, Sébastien and Avouac, Jean-Philippe and Helmberger, Don V.",
    title = "Rupture Process of the 1999 M\_w 7.1 Duzce Earthquake from Joint Analysis of SPOT, GPS, InSAR, Strong-Motion, and Teleseismic Data: A Supershear Rupture with Variable Rupture Velocity",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20100225-110542388",
    id = "https://authors.library.caltech.edu/records/d6t66-66p49",
    issn = "0037-1106",
    doi = "10.1785/0120090072",
    volume = "100",
    number = "1",
    pages = "267-288"
}


@article{https://authors.library.caltech.edu/records/ep1jt-93q78,
    authors = "Chu, Risheng and Helmberger, Don V. and Sun, Daoyuan and Jackson, Jennifer M. and Zhu, Lupei",
    title = "Mushy magma beneath Yellowstone",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20100216-092600382",
    id = "https://authors.library.caltech.edu/records/ep1jt-93q78",
    issn = "0094-8276",
    doi = "10.1029/2009GL041656",
    volume = "37",
    pages = "Art. No. L01306"
}


@article{https://authors.library.caltech.edu/records/9yxra-5nv38,
    authors = "Chu, Risheng and Zhu, Lupei and Helmberger, Don V.",
    title = "Determination of earthquake focal depths and source time functions in central Asia using teleseismic P waveforms",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2009",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20091001-152630282",
    id = "https://authors.library.caltech.edu/records/9yxra-5nv38",
    issn = "0094-8276",
    doi = "10.1029/2009GL039494",
    volume = "36",
    pages = "L17317"
}


@article{https://authors.library.caltech.edu/records/21zhv-3zg27,
    authors = "Sun, Daoyuan and Helmberger, Don and Ni, Sidao and Bower, Dan",
    title = "Direct measures of lateral velocity variation in the deep Earth",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2009",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20090814-152106630",
    id = "https://authors.library.caltech.edu/records/21zhv-3zg27",
    issn = "0148-0227",
    doi = "10.1029/2008JB005873",
    volume = "114",
    number = "5",
    pages = "Art. No. B05303"
}


@article{https://authors.library.caltech.edu/records/0vj8b-6zt68,
    authors = "Song, Teh-Ru Alex and Helmberger, Donald V. and Brudzinski, Michael R. and Clayton, Robert W. and Davis, Paul and Pérez-Campos, Xyoli and Singh, Shri K.",
    title = "Subducting slab ultra-slow velocity layer coincident with silent earthquakes in southern Mexico",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "2009",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20090507-090314466",
    id = "https://authors.library.caltech.edu/records/0vj8b-6zt68",
    issn = "0036-8075",
    doi = "10.1126/science.1167595",
    volume = "324",
    number = "5926",
    pages = "502-506"
}


@article{https://authors.library.caltech.edu/records/dhz5d-fxp85,
    authors = "Konca, A. Ozgun and Avouac, Jean-Philippe and Sladen, Anthony and Meltzner, Aron J. and Sieh, Kerry and Fang, Peng and Li, Zhenhong and Galetzka, John and Genrich, Jeff and Chlieh, Mohamed and Natawidjaja, Danny and Bock, Yehuda and Fielding, Eric J. and Ji, Chen and Helmberger, Don V.",
    title = "Partial rupture of a locked patch of the Sumatra megathrust during the 2007 earthquake sequence",
    journal = "Nature",
    publisher = "Nature Publishing Group",
    year = "2008",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:KONnat08",
    id = "https://authors.library.caltech.edu/records/dhz5d-fxp85",
    issn = "0028-0836",
    doi = "10.1038/nature07572",
    volume = "456",
    number = "7222",
    pages = "631-635"
}


@article{https://authors.library.caltech.edu/records/k0d91-48637,
    authors = "Sun, Daoyuan and Helmberger, Don",
    title = "Lower mantle tomography and phase change mapping",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2008",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:SUNjgrb08",
    id = "https://authors.library.caltech.edu/records/k0d91-48637",
    issn = "0148-0227",
    doi = "10.1029/2007JB005289",
    volume = "113",
    number = "B10",
    pages = "Art. No. B10305"
}


@article{https://authors.library.caltech.edu/records/bk2bs-48q05,
    authors = "Song, Teh-Ru Alex and Helmberger, Don. V.",
    title = "Validating tomographic model with broad-band waveform modelling: an example from the LA RISTRA transect in the southwestern United States",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "2007",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20091130-154154514",
    id = "https://authors.library.caltech.edu/records/bk2bs-48q05",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.2007.03508.x",
    volume = "171",
    number = "1",
    pages = "244-258"
}


@article{https://authors.library.caltech.edu/records/59sjp-k4k68,
    authors = "Tan, Ying and Helmberger, Don",
    title = "A new method for determining small earthquake source parameters using short-period P waves",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2007",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:TANbssa07",
    id = "https://authors.library.caltech.edu/records/59sjp-k4k68",
    issn = "0037-1106",
    doi = "10.1785/0120060251",
    volume = "97",
    number = "4",
    pages = "1176-1195"
}


@article{https://authors.library.caltech.edu/records/63qct-w5j38,
    authors = "Sun, Daoyuan and Helmberger, Don and Gurnis, Michael",
    title = "Seismological support for the metastable superplume model, sharp features, and phase changes within the lower mantle",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
    publisher = "National Academy of Sciences",
    year = "2007",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:SUNpnas07b",
    id = "https://authors.library.caltech.edu/records/63qct-w5j38",
    issn = "0027-8424",
    doi = "10.1073/pnas.0608160104",
    volume = "104",
    number = "22",
    pmcid = "PMC1890462",
    pages = "9151-9155"
}


@article{https://authors.library.caltech.edu/records/2nty3-3bd65,
    authors = "Chen, Min and Tromp, Jeroen and Helmberger, Don and Kanamori, Hiroo",
    title = "Waveform modeling of the slab beneath Japan",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2007",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20101115-152637567",
    id = "https://authors.library.caltech.edu/records/2nty3-3bd65",
    issn = "0148-0227",
    doi = "10.1029/2006JB004394",
    volume = "112",
    number = "B2",
    pages = "Art. No. B02305"
}


@article{https://authors.library.caltech.edu/records/g9qec-5wp03,
    authors = "Sun, Xinlei and Song, Xiaodong and Zheng, Sihua and Helmberger, Don V.",
    title = "Evidence for a chemical-thermal structure at base of mantle from sharp lateral P-wave variations beneath Central America",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
    publisher = "National Academy of Sciences",
    year = "2007",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:SUNpnas07a",
    id = "https://authors.library.caltech.edu/records/g9qec-5wp03",
    issn = "0027-8424",
    doi = "10.1073/pnas.0609143103",
    volume = "104",
    number = "1",
    pmcid = "PMC1765446",
    pages = "26-30"
}


@article{https://authors.library.caltech.edu/records/8fssm-tj410,
    authors = "Konca, A. Ozgun and Hjorleifsdottir, Vala and Song, Teh-Ru Alex and Avouac, Jean-Philippe and Helmberger, Don V. and Ji, Chen and Sieh, Kerry and Briggs, Richard and Meltzner, Aron",
    title = "Rupture Kinematics of the 2005 M\_w 8.6 Nias–Simeulue Earthquake from the Joint Inversion of Seismic and Geodetic Data",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2007",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20101116-092441405",
    id = "https://authors.library.caltech.edu/records/8fssm-tj410",
    issn = "0037-1106",
    doi = "10.1785/0120050632",
    volume = "97",
    number = "1",
    pages = "S307-S322"
}


@article{https://authors.library.caltech.edu/records/sxvc2-ca149,
    authors = "Avouac, Jean-Philippe and Ayoub, François and Leprince, Sébastien and Konca, Ozgun and Helmberger, Don V.",
    title = "The 2005, M\_w 7.6 Kashmir earthquake: Sub-pixel correlation of ASTER images and seismic waveforms analysis",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2006",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20101116-151107763",
    id = "https://authors.library.caltech.edu/records/sxvc2-ca149",
    issn = "0012-821X",
    doi = "10.1016/j.epsl.2006.06.025",
    volume = "249",
    number = "3-4",
    pages = "514-528"
}


@article{https://authors.library.caltech.edu/records/nkg9f-zr961,
    authors = "Helmberger, D. and Lay, T. and Ni, S. and Gurnis, M.",
    title = "Deep mantle structure and the postperovskite phase transition",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
    publisher = "National Academy of Sciences",
    year = "2005",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:HELpnas05",
    id = "https://authors.library.caltech.edu/records/nkg9f-zr961",
    issn = "0027-8424",
    doi = "10.1073/pnas.0502504102",
    volume = "102",
    number = "48",
    pmcid = "PMC1297654",
    pages = "17257-17263"
}


@article{https://authors.library.caltech.edu/records/e0fyn-p7x25,
    authors = "Ammon, Charles J. and Ji, Chen and Thio, Hong-Kie and Robinson, David and Ni, Sidao and Hjorleifsdottir, Vala and Kanamori, Hiroo and Lay, Thorne and Das, Shamita and Helmberger, Don V. and Ichinose, Gene and Polet, Jascha and Wald, David",
    title = "Rupture Process of the 2004 Sumatra-Andaman Earthquake",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "2005",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20101118-081149907",
    id = "https://authors.library.caltech.edu/records/e0fyn-p7x25",
    issn = "0036-8075",
    doi = "10.1126/science.1112260",
    volume = "308",
    number = "5725",
    pages = "1133-1139"
}


@article{https://authors.library.caltech.edu/records/dre5k-zs285,
    authors = "Ni, Sidao and Kanamori, Hiroo and Helmberger, Don",
    title = "Seismology:  Energy radiation from the Sumatra earthquake",
    journal = "Nature",
    publisher = "Nature Publishing Group",
    year = "2005",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20101118-094824674",
    id = "https://authors.library.caltech.edu/records/dre5k-zs285",
    issn = "0028-0836",
    doi = "10.1038/434582a",
    volume = "434",
    number = "7033",
    pages = "582-582"
}


@article{https://authors.library.caltech.edu/records/4amxn-nw866,
    authors = "Helmberger, Don V. and Ni, Sidao",
    title = "Approximate 3D Body-Wave Synthetics for Tomographic Models",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2005",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140801-092338935",
    id = "https://authors.library.caltech.edu/records/4amxn-nw866",
    issn = "0037-1106",
    doi = "10.1785/0120040004",
    volume = "95",
    number = "1",
    pages = "212-224"
}


@article{https://authors.library.caltech.edu/records/w3ted-32m11,
    authors = "Ji, Chen and Helmberger, Don V. and Wald, David J.",
    title = "A Teleseismic Study of the 2002 Denali Fault, Alaska, Earthquake and Implications for Rapid Strong-Motion Estimation",
    journal = "Earthquake Spectra",
    publisher = "Earthquake Spectra",
    year = "2004",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:JICes04",
    id = "https://authors.library.caltech.edu/records/w3ted-32m11",
    issn = "8755-2930",
    doi = "10.1193/1.1778388",
    volume = "20",
    number = "3",
    pages = "617-637"
}


@article{https://authors.library.caltech.edu/records/1wf3b-x7v07,
    authors = "Song, Teh-Ru Alex and Helmberger, Don V. and Grand, Stephen P.",
    title = "Low-velocity zone atop the 410-km seismic discontinuity in the northwestern United States",
    journal = "Nature",
    publisher = "Nature Publishing Group",
    year = "2004",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150325-160140009",
    id = "https://authors.library.caltech.edu/records/1wf3b-x7v07",
    issn = "0028-0836",
    doi = "10.1038/nature02231",
    volume = "427",
    number = "6974",
    pages = "530-533"
}


@article{https://authors.library.caltech.edu/records/5yk8a-yf039,
    authors = "Savage, Brian and Helmberger, Don V.",
    title = "Site response from incident Pnl waves",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2004",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140801-091627948",
    id = "https://authors.library.caltech.edu/records/5yk8a-yf039",
    issn = "0037-1106",
    doi = "10.1785/0120030145",
    volume = "94",
    number = "1",
    pages = "357-362"
}


@article{https://authors.library.caltech.edu/records/28tvb-kyv96,
    authors = "Ni, Sidao and Cormier, Vernon F. and Helmberger, Don V.",
    title = "A Comparison of Synthetic Seismograms for 2D Structures: Semianalytical versus Numerical",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2003",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-081652536",
    id = "https://authors.library.caltech.edu/records/28tvb-kyv96",
    issn = "0037-1106",
    doi = "10.1785/0120030011",
    volume = "93",
    number = "6",
    pages = "2752-2757"
}


@article{https://authors.library.caltech.edu/records/v73bk-3gg42,
    authors = "Ni, Sidao and Helmberger, Don V.",
    title = "Further constraints on the African superplume structure",
    journal = "Physics of the Earth and Planetary Interiors",
    publisher = "Elsevier",
    year = "2003",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-103909971",
    id = "https://authors.library.caltech.edu/records/v73bk-3gg42",
    issn = "0031-9201",
    doi = "10.1016/j.pepi.2003.07.011",
    volume = "140",
    number = "1-3",
    pages = "243-251"
}


@article{https://authors.library.caltech.edu/records/bx344-ev555,
    authors = "Ji, Chen and Helmberger, Donald V. and Wald, David J. and Ma, Kuo-Fong",
    title = "Slip history and dynamic implications of the 1999 Chi-Chi, Taiwan, earthquake",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2003",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-135137809",
    id = "https://authors.library.caltech.edu/records/bx344-ev555",
    issn = "0148-0227",
    doi = "10.1029/2002JB001764",
    volume = "108",
    number = "B9",
    pages = "Art. No. 2412"
}


@article{https://authors.library.caltech.edu/records/g4p1b-37362,
    authors = "Savage, Brian and Ji, Chen and Helmberger, Don V.",
    title = "Velocity variations in the uppermost mantle beneath the southern Sierra Nevada and Walker Lane",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2003",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130213-140633041",
    id = "https://authors.library.caltech.edu/records/g4p1b-37362",
    issn = "0148-0227",
    doi = "10.1029/2001JB001393",
    volume = "108",
    number = "B7",
    pages = "Art. No. 2325"
}


@article{https://authors.library.caltech.edu/records/eatt0-b8c67,
    authors = "Ni, Sidao and Helmberger, Don V.",
    title = "Ridge-like lower mantle structure beneath South Africa",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2003",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130220-140045541",
    id = "https://authors.library.caltech.edu/records/eatt0-b8c67",
    issn = "0148-0227",
    doi = "10.1029/2001JB001545",
    volume = "108",
    number = "B2",
    pages = "Art. No. 2094"
}


@article{https://authors.library.caltech.edu/records/b3sk8-95f70,
    authors = "Ni, Sidao and Helmberger, Don V.",
    title = "Seismological constraints on the South African superplume;
 could be the oldest distinct structure on earth",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2003",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-111133502",
    id = "https://authors.library.caltech.edu/records/b3sk8-95f70",
    issn = "0012-821X",
    doi = "10.1016/S0012-821X(02)01072-5",
    volume = "206",
    number = "1-2",
    pages = "119-131"
}


@article{https://authors.library.caltech.edu/records/hywk6-b1a05,
    authors = "Melbourne, Timothy I. and Helmberger, Donald V.",
    title = "Whole mantle shear structure beneath the East Pacific Rise",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2002",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130213-152644968",
    id = "https://authors.library.caltech.edu/records/hywk6-b1a05",
    issn = "0148-0227",
    doi = "10.1029/2001JB000332",
    volume = "107",
    number = "B9",
    pages = "Art. No. 2204"
}


@article{https://authors.library.caltech.edu/records/022cn-fpr96,
    authors = "Ni, Sidao and Tan, Eh and Gurnis, Michael and Helmberger, Don",
    title = "Sharp Sides to the African Superplume",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "2002",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121120-125635450",
    id = "https://authors.library.caltech.edu/records/022cn-fpr96",
    issn = "0036-8075",
    doi = "10.1126/science.1070698",
    volume = "296",
    number = "5574",
    pages = "1850-1852"
}


@article{https://authors.library.caltech.edu/records/cm3t9-dvc24,
    authors = "Rivera, Luis and Sieh, Kerry and Helmberger, Don and Natawidjaja, Danny",
    title = "A Comparative Study of the Sumatran Subduction-Zone Earthquakes of 1935 and 1984",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2002",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110111-152539576",
    id = "https://authors.library.caltech.edu/records/cm3t9-dvc24",
    issn = "0037-1106",
    doi = "10.1785/0120010106",
    volume = "92",
    number = "5",
    pages = "1721-1736"
}


@article{https://authors.library.caltech.edu/records/m7ycv-cw735,
    authors = "Ji, Chen and Wald, David J. and Helmberger, Donald V.",
    title = "Source Description of the 1999 Hector Mine, California, Earthquake, Part I: Wavelet Domain Inversion Theory and Resolution Analysis",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2002",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-083950391",
    id = "https://authors.library.caltech.edu/records/m7ycv-cw735",
    issn = "0037-1106",
    doi = "10.1785/0120000916",
    volume = "92",
    number = "4",
    pages = "1192-1207"
}


@article{https://authors.library.caltech.edu/records/5yyk4-bhd05,
    authors = "Ji, Chen and Wald, David J. and Helmberger, Donald V.",
    title = "Source Description of the 1999 Hector Mine, California, Earthquake, Part II: Complexity of Slip History",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2002",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-084414467",
    id = "https://authors.library.caltech.edu/records/5yyk4-bhd05",
    issn = "0037-1106",
    doi = "10.1785/0120000917",
    volume = "92",
    number = "4",
    pages = "1208-1226"
}


@article{https://authors.library.caltech.edu/records/7z0q7-n8c02,
    authors = "Ji, Chen and Helmberger, Donald V. and Song, Teh-Ru Alex and Ma, Kuo‐Fong and Wald, David J.",
    title = "Slip distribution and tectonic implication of the 1999 Chi‐Chi, Taiwan, Earthquake",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110111-102716913",
    id = "https://authors.library.caltech.edu/records/7z0q7-n8c02",
    issn = "0094-8276",
    doi = "10.1029/2001GL013225",
    volume = "28",
    number = "23",
    pages = "4379-4382"
}


@article{https://authors.library.caltech.edu/records/est8m-frt88,
    authors = "Melbourne, Tim and Helmberger, Don",
    title = "Mantle control of plate boundary deformation",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130415-102940970",
    id = "https://authors.library.caltech.edu/records/est8m-frt88",
    issn = "0094-8276",
    doi = "10.1029/2001GL013167",
    volume = "28",
    number = "20",
    pages = "4003-4006"
}


@article{https://authors.library.caltech.edu/records/5qav4-gtz64,
    authors = "Saikia, Chandan K. and Helmberger, D. V. and Stead, R. J. and Woods, B. B.",
    title = "Effects of Source RDP Models and Near-source Propagation: Implication for Seismic Yield Estimation",
    journal = "Pure and Applied Geophysics",
    publisher = "Springer",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190829-131532824",
    id = "https://authors.library.caltech.edu/records/5qav4-gtz64",
    issn = "0033-4553",
    doi = "10.1007/pl00001145",
    volume = "158",
    number = "11",
    pages = "2173-2216"
}


@article{https://authors.library.caltech.edu/records/m35zt-bzd32,
    authors = "Savage, Brian and Helmberger, Don V.",
    title = "Kursk Explosion",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-134915343",
    id = "https://authors.library.caltech.edu/records/m35zt-bzd32",
    issn = "0037-1106",
    doi = "10.1785/0120000295",
    volume = "91",
    number = "4",
    pages = "753-759"
}


@article{https://authors.library.caltech.edu/records/v3mg7-0s539,
    authors = "Luo, Sheng-Nian and Ni, Sidao and Helmberger, Donald V.",
    title = "Evidence for a sharp lateral variation of velocity at the
 core-mantle boundary from multipathed PKPab",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-104806124",
    id = "https://authors.library.caltech.edu/records/v3mg7-0s539",
    issn = "0012-821X",
    doi = "10.1016/S0012-821X(01)00364-8",
    volume = "189",
    number = "3-4",
    pages = "155-164"
}


@article{https://authors.library.caltech.edu/records/kdmqm-1s669,
    authors = "Ni, Sidao and Helmberger, Don V.",
    title = "Probing an ultra-low velocity zone at the core mantle boundary with P and S waves",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130115-082524407",
    id = "https://authors.library.caltech.edu/records/kdmqm-1s669",
    issn = "0094-8276",
    doi = "10.1029/2000GL012766",
    volume = "28",
    number = "12",
    pages = "2345-2348"
}


@article{https://authors.library.caltech.edu/records/pxvta-c7a03,
    authors = "Ni, Sidao and Helmberger, Don V.",
    title = "Horizontal transition from fast to slow structures at the
 core-mantle boundary; South Atlantic",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-101812983",
    id = "https://authors.library.caltech.edu/records/pxvta-c7a03",
    issn = "0012-821X",
    doi = "10.1016/S0012-821X(01)00273-4",
    volume = "187",
    number = "3-4",
    pages = "301-310"
}


@article{https://authors.library.caltech.edu/records/ydnzv-ter49,
    authors = "Helmberger, D. V. and Song, X. J. and Zhu, L.",
    title = "Crustal complexity from regional waveform tomography: Aftershocks of the 1992 Landers earthquake, California",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-093252424",
    id = "https://authors.library.caltech.edu/records/ydnzv-ter49",
    issn = "0148-0227",
    doi = "10.1029/2000JB900231",
    volume = "106",
    number = "B1",
    pages = "609-620"
}


@article{https://authors.library.caltech.edu/records/pea40-9ky31,
    authors = "Helmberger, Don and Ni, Sidao and Wen, Lianxing and Ritsema, Jeroen",
    title = "Seismic evidence for ultralow-velocity zones beneath Africa and eastern Atlantic",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "2000",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130128-082945301",
    id = "https://authors.library.caltech.edu/records/pea40-9ky31",
    issn = "0148-0227",
    doi = "10.1029/2000JB900143",
    volume = "105",
    number = "B10",
    pages = "23865-23878"
}


@article{https://authors.library.caltech.edu/records/b1df9-24239,
    authors = "Ji, Chen and Helmberger, Don V. and Wald, David J.",
    title = "Basin Structure Estimation by Waveform Modeling: Forward and Inverse Methods",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "2000",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-135304099",
    id = "https://authors.library.caltech.edu/records/b1df9-24239",
    issn = "0037-1106",
    doi = "10.1785/0119990080",
    volume = "90",
    number = "4",
    pages = "964-976"
}


@article{https://authors.library.caltech.edu/records/0dby8-7as92,
    authors = "Ni, Sidao and Ding, Xiaoming and Helmberger, Don V.",
    title = "Constructing synthetics from deep earth tomographic models",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "2000",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130227-111141468",
    id = "https://authors.library.caltech.edu/records/0dby8-7as92",
    issn = "0956-540X",
    doi = "10.1046/j.1365-246x.2000.00982.x",
    volume = "140",
    number = "1",
    pages = "71-82"
}


@article{https://authors.library.caltech.edu/records/7c8q7-p8j05,
    authors = "Scrivner, Craig W. and Helmberger, Donald V.",
    title = "Finite-difference modeling of two aftershocks of the 1994 Northridge, California, earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1999",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-135914948",
    id = "https://authors.library.caltech.edu/records/7c8q7-p8j05",
    issn = "0037-1106",
    volume = "89",
    number = "6",
    pages = "1505-1518"
}


@article{https://authors.library.caltech.edu/records/sbc7e-j3436,
    authors = "Sidorin, Igor and Gurnis, Michael and Helmberger, Don V.",
    title = "Evidence for a Ubiquitous Seismic Discontinuity at the Base of the Mantle",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "1999",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-133210820",
    id = "https://authors.library.caltech.edu/records/sbc7e-j3436",
    issn = "0036-8075",
    doi = "10.1126/science.286.5443.1326",
    volume = "286",
    number = "5443",
    pages = "1326-1331"
}


@article{https://authors.library.caltech.edu/records/a2y3w-bym56,
    authors = "Ni, Sidao and Ding, Xiaoming and Helmberger, Donald V. and Gurnis, Michael",
    title = "Low-velocity structure beneath Africa from forward modeling",
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "1999",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-113907160",
    id = "https://authors.library.caltech.edu/records/a2y3w-bym56",
    issn = "0012-821X",
    doi = "10.1016/S0012-821X(99)00121-1",
    volume = "170",
    number = "4",
    pages = "497-507"
}


@article{https://authors.library.caltech.edu/records/cevm6-h1g22,
    authors = "Sidorin, Igor and Gurnis, Michael and Helmberger, Donald V.",
    title = "Dynamics of a phase change at the base of the mantle consistent with seismological observations",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1999",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130311-145952642",
    id = "https://authors.library.caltech.edu/records/cevm6-h1g22",
    issn = "0148-0227",
    doi = "10.1029/1999JB900065",
    volume = "104",
    number = "B4",
    pages = "15005-15023"
}


@article{https://authors.library.caltech.edu/records/m24sk-zvp76,
    authors = "Scrivner, Craig W. and Helmberger, Donald V.",
    title = "Variability of ground motions in southern California—data from the 1995 to 1996 Ridgecrest sequence",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1999",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130115-100522727",
    id = "https://authors.library.caltech.edu/records/m24sk-zvp76",
    issn = "0037-1106",
    volume = "89",
    number = "3",
    pages = "626-639"
}


@article{https://authors.library.caltech.edu/records/8aj13-ffk62,
    authors = "Thio, Hong Kie and Song, Xi and Saikia, Chandan K. and Helmberger, Donald V. and Woods, Bradley B.",
    title = "Seismic source and structure estimation in the western
 Mediterranean using a sparse broadband network",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1999",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130109-112506642",
    id = "https://authors.library.caltech.edu/records/8aj13-ffk62",
    issn = "0148-0227",
    doi = "10.1029/98JB01498",
    volume = "104",
    number = "B1",
    pages = "845-861"
}


@article{https://authors.library.caltech.edu/records/9b259-b3748,
    authors = "Ritsema, Jeroen and Ni, Sidao and Helmberger, Donald V. and Crotwell, H. Philip",
    title = "Evidence for strong shear velocity reductions and velocity gradients in the lower mantle beneath Africa",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130220-102248772",
    id = "https://authors.library.caltech.edu/records/9b259-b3748",
    issn = "0094-8276",
    doi = "10.1029/1998GL900127",
    volume = "25",
    number = "23",
    pages = "4245-4248"
}


@article{https://authors.library.caltech.edu/records/2avgm-8hp44,
    authors = "Jones, Laura E. and Helmberger, Donald V.",
    title = "Earthquake Source Parameters and Fault Kinematics in the Eastern California Shear Zone",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-135219429",
    id = "https://authors.library.caltech.edu/records/2avgm-8hp44",
    issn = "0037-1106",
    volume = "88",
    number = "6",
    pages = "1337-1352"
}


@article{https://authors.library.caltech.edu/records/742zv-cjz87,
    authors = "Helmberger, D. V. and Wen, L. and Ding, X.",
    title = "Seismic evidence that the source of the Iceland hotspot lies at the core-mantle boundary",
    journal = "Nature",
    publisher = "Nature Publishing Group",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130402-103002791",
    id = "https://authors.library.caltech.edu/records/742zv-cjz87",
    issn = "0028-0836",
    doi = "10.1038/24357",
    volume = "396",
    number = "6708",
    pages = "251-255"
}


@article{https://authors.library.caltech.edu/records/7y3zk-qz649,
    authors = "Sidorin, Igor and Gurnis, Michael and Helmberger, Donald V. and Ding, Xiaoming",
    title = {Interpreting D" seismic structure using synthetic waveforms computed from dynamic models},
    journal = "Earth and Planetary Science Letters",
    publisher = "Elsevier",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-112435944",
    id = "https://authors.library.caltech.edu/records/7y3zk-qz649",
    issn = "0012-821X",
    doi = "10.1016/S0012-821X(98)00172-1",
    volume = "163",
    number = "1-4",
    pages = "31-41"
}


@article{https://authors.library.caltech.edu/records/g244j-2fa43,
    authors = "Song, Xiaodong and Helmberger, Don V.",
    title = "Seismic Evidence for an Inner Core Transition Zone",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130125-142622708",
    id = "https://authors.library.caltech.edu/records/g244j-2fa43",
    issn = "0036-8075",
    doi = "10.1126/science.282.5390.924",
    volume = "282",
    number = "5390",
    pages = "924-927"
}


@article{https://authors.library.caltech.edu/records/t6r6m-ch036,
    authors = "Zhu, Lupei and Helmberger, Donald V.",
    title = "Moho Offset Across the Northern Margin of the Tibetan Plateau",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-103505965",
    id = "https://authors.library.caltech.edu/records/t6r6m-ch036",
    issn = "0036-8075",
    doi = "10.1126/science.281.5380.1170",
    volume = "281",
    number = "5380",
    pages = "1170-1172"
}


@article{https://authors.library.caltech.edu/records/yzzxy-k3011,
    authors = "Wen, Lianxing and Helmberger, Donald V.",
    title = "A two-dimensional P-SV hybrid method and its application to modeling localized structures near the core-mantle boundary",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121129-110137879",
    id = "https://authors.library.caltech.edu/records/yzzxy-k3011",
    issn = "0148-0227",
    doi = "10.1029/98JB01276",
    volume = "103",
    number = "B8",
    pages = "17,901-17,918"
}


@article{https://authors.library.caltech.edu/records/k1rjb-2z941,
    authors = "Garnero, Edward J. and Helmberger, Donald V.",
    title = "Further structural constraints and uncertainties of a thin
 laterally varying ultralow-velocity layer at the base of the mantle",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121129-104248537",
    id = "https://authors.library.caltech.edu/records/k1rjb-2z941",
    issn = "0148-0227",
    doi = "10.1029/98JB00700",
    volume = "103",
    number = "B6",
    pages = "12,495-12,509"
}


@article{https://authors.library.caltech.edu/records/v3ea6-jnr87,
    authors = "Melbourne, Tim and Helmberger, Don",
    title = "Fine structure of the 410-km discontinuity",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121129-103321400",
    id = "https://authors.library.caltech.edu/records/v3ea6-jnr87",
    issn = "0148-0227",
    doi = "10.1029/98JB00164",
    volume = "103",
    number = "B5",
    pages = "10,091-10,102"
}


@article{https://authors.library.caltech.edu/records/rmayj-ea345,
    authors = "Wen, Lianxing and Helmberger, Donald V.",
    title = "Ultra-Low Velocity Zones Near the Core-Mantle Boundary from Broadband PKP Precursors",
    journal = "Science",
    publisher = "American Association for the Advancement of Science",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-135027367",
    id = "https://authors.library.caltech.edu/records/rmayj-ea345",
    issn = "0036-8075",
    doi = "10.1126/science.279.5357.1701",
    volume = "279",
    number = "5357",
    pages = "1701-1703"
}


@article{https://authors.library.caltech.edu/records/nd20c-67c36,
    authors = "Sato, Toshiaki and Helmberger, Donald V. and Somerville, Paul G. and Graves, Robert W. and Saikia, Chandan K.",
    title = "Estimates of regional and local strong motions during the great 1923 Kanto, Japan, earthquake (Ms 8.2). Part 1: Source estimation of a calibration event and modeling of wave propagation paths",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130109-111101743",
    id = "https://authors.library.caltech.edu/records/nd20c-67c36",
    issn = "0037-1106",
    volume = "88",
    number = "1",
    pages = "183-205"
}


@article{https://authors.library.caltech.edu/records/pgasa-jc754,
    authors = "Song, Xi J. and Helmberger, Donald V.",
    title = "Pseudo Green's Functions and Waveform Tomography",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130104-073150017",
    id = "https://authors.library.caltech.edu/records/pgasa-jc754",
    issn = "0037-1106",
    volume = "88",
    number = "1",
    pages = "304-312"
}


@article{https://authors.library.caltech.edu/records/1dtra-pva03,
    authors = "Helmberger, Don",
    title = "Helmberger Receives Lehmann Medal",
    journal = "Eos",
    publisher = "American Geophysical Union",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20141028-085930692",
    id = "https://authors.library.caltech.edu/records/1dtra-pva03",
    issn = "0096-3941",
    doi = "10.1029/98EO00032",
    volume = "79",
    number = "4",
    pages = "47"
}


@article{https://authors.library.caltech.edu/records/bq7sz-db556,
    authors = "Zhu, Lupei and Helmberger, Donald V. and Saikia, Chandan K. and Woods, Bradley B.",
    title = "Regional waveform calibration in the Pamir-Hindu Kush region",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121129-101823799",
    id = "https://authors.library.caltech.edu/records/bq7sz-db556",
    issn = "0148-0227",
    doi = "10.1029/97JB01855",
    volume = "102",
    number = "B10",
    pages = "22,799-22,813"
}


@article{https://authors.library.caltech.edu/records/a7126-mc002,
    authors = "Song, Xiaodong and Helmberger, Don V.",
    title = "PKP differential travel times: Implications for 3-D lower mantle structure",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121129-094531915",
    id = "https://authors.library.caltech.edu/records/a7126-mc002",
    issn = "0094-8276",
    doi = "10.1029/97GL01761",
    volume = "24",
    number = "15",
    pages = "1863-1866"
}


@article{https://authors.library.caltech.edu/records/be05f-9eg49,
    authors = "Saikia, Chandan K. and Helmberger, D. V.",
    title = "Approximation of Rupture Directivity in Regional Phases Using Upgoing and Downgoing Wave Fields",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130204-103833144",
    id = "https://authors.library.caltech.edu/records/be05f-9eg49",
    issn = "0037-1106",
    volume = "87",
    number = "4",
    pages = "987-998"
}


@article{https://authors.library.caltech.edu/records/jqv05-30592,
    authors = "Song, Xi J. and Helmberger, Donald V.",
    title = "Northridge aftershocks, a source study with TERRAscope data",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121212-080639791",
    id = "https://authors.library.caltech.edu/records/jqv05-30592",
    issn = "0037-1106",
    volume = "87",
    number = "4",
    pages = "1024-1034"
}


@article{https://authors.library.caltech.edu/records/c1f4w-83f05,
    authors = "Wen, Lianxing and Helmberger, Donald V.",
    title = "Propagational Corrections for Basin Structure: Landers Earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-105034433",
    id = "https://authors.library.caltech.edu/records/c1f4w-83f05",
    issn = "0037-1106",
    volume = "87",
    number = "3",
    pages = "782-787"
}


@article{https://authors.library.caltech.edu/records/1sk8s-yzy71,
    authors = "Woods, Bradley B. and Helmberger, Donald V.",
    title = "Regional Seismic Discriminants Using Wave-Train Energy Ratios",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-090933206",
    id = "https://authors.library.caltech.edu/records/1sk8s-yzy71",
    issn = "0037-1106",
    volume = "87",
    number = "3",
    pages = "589-605"
}


@article{https://authors.library.caltech.edu/records/w4byf-ar918,
    authors = "Ding, Xiaoming and Helmberger, Donald V.",
    title = "Modelling D″ structure beneath Central America with broadband seismic data",
    journal = "Physics of the Earth and Planetary Interiors",
    publisher = "Elsevier",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-133116039",
    id = "https://authors.library.caltech.edu/records/w4byf-ar918",
    issn = "0031-9201",
    doi = "10.1016/S0031-9201(97)00001-0",
    volume = "101",
    number = "3-4",
    pages = "245-270"
}


@article{https://authors.library.caltech.edu/records/nnbs6-1k158,
    authors = "Pino, N. Alessandro and Helmberger, Donald V.",
    title = "Upper mantle compressional velocity structure beneath the West Mediterranean Basin",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-104350830",
    id = "https://authors.library.caltech.edu/records/nnbs6-1k158",
    issn = "0148-0227",
    doi = "10.1029/96JB03461",
    volume = "102",
    number = "B2",
    pages = "2953-2967"
}


@article{https://authors.library.caltech.edu/records/t71w2-pf592,
    authors = "Mori, Jim and Helmberger, Donald",
    title = "Large-amplitude Moho reflections (SmS) from Landers aftershocks, southern California",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121211-153958278",
    id = "https://authors.library.caltech.edu/records/t71w2-pf592",
    issn = "0037-1106",
    volume = "86",
    number = "6",
    pages = "1845-1852"
}


@article{https://authors.library.caltech.edu/records/j3d2f-pvm75,
    authors = "Zhu, Lupei and Helmberger, Donald V.",
    title = "Advancement in Source Estimation Techniques Using Broadband Regional Seismograms",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130122-104326713",
    id = "https://authors.library.caltech.edu/records/j3d2f-pvm75",
    issn = "0037-1106",
    volume = "86",
    number = "5",
    pages = "1634-1641"
}


@article{https://authors.library.caltech.edu/records/f8a8t-7ww28,
    authors = "Helmberger, D. V. and Garnero, E. J. and Ding, X.",
    title = "Modeling two-dimensional structure at the core-mantle
 boundary",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-103352821",
    id = "https://authors.library.caltech.edu/records/f8a8t-7ww28",
    issn = "0148-0227",
    doi = "10.1029/96JB00534",
    volume = "101",
    number = "B6",
    pages = "13,963-13,972"
}


@article{https://authors.library.caltech.edu/records/yvrcv-r8b59,
    authors = "Song, Xi J. and Helmberger, Donald V.",
    title = "Source Estimation of Finite Faults from Broadband Regional Networks",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-105738825",
    id = "https://authors.library.caltech.edu/records/yvrcv-r8b59",
    issn = "0037-1106",
    volume = "86",
    number = "3",
    pages = "797-804"
}


@article{https://authors.library.caltech.edu/records/pdg5a-9mj46,
    authors = "Garnero, Edward J. and Helmberger, Donald V.",
    title = "Seismic detection of a thin laterally varying boundary layer
 at the base of the mantle beneath the central-Pacific",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121127-152932227",
    id = "https://authors.library.caltech.edu/records/pdg5a-9mj46",
    issn = "0094-8276",
    doi = "10.1029/95GL03603",
    volume = "23",
    number = "9",
    pages = "977-980"
}


@article{https://authors.library.caltech.edu/records/hspw2-j3924,
    authors = "Song, Xi J. and Helmberger, Donald V. and Zhao, L.",
    title = "Broad-Band Modelling of Regional Seismograms: the Basin and Range Crustal Structure",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130624-105059362",
    id = "https://authors.library.caltech.edu/records/hspw2-j3924",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.1996.tb06531.x",
    volume = "125",
    number = "1",
    pages = "15-29"
}


@article{https://authors.library.caltech.edu/records/80a36-ht098,
    authors = "Zhu, Lupei and Helmberger, Donald V.",
    title = "Intermediate depth earthquakes beneath the India-Tibet
 collision zone",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-102606226",
    id = "https://authors.library.caltech.edu/records/80a36-ht098",
    issn = "0094-8276",
    doi = "10.1029/96GL00385",
    volume = "23",
    number = "5",
    pages = "435-438"
}


@article{https://authors.library.caltech.edu/records/39sed-h8t89,
    authors = "Zhao, Lian-She and Helmberger, Donald V.",
    title = "Regional moments, energy levels, and a new discriminant",
    journal = "Pure and Applied Geophysics",
    publisher = "Springer",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130305-083904557",
    id = "https://authors.library.caltech.edu/records/39sed-h8t89",
    issn = "0033-4553",
    doi = "10.1007/BF00876494",
    volume = "146",
    number = "2",
    pages = "281-304"
}


@article{https://authors.library.caltech.edu/records/3w22y-w5892,
    authors = "Jones, Laura E. and Helmberger, Donald V.",
    title = "Seismicity and stress-drop in the eastern Transverse ranges,
 Southern California",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-101239920",
    id = "https://authors.library.caltech.edu/records/3w22y-w5892",
    issn = "0094-8276",
    doi = "10.1029/96GL00012",
    volume = "23",
    number = "3",
    pages = "233-236"
}


@article{https://authors.library.caltech.edu/records/8k7xv-4dt07,
    authors = "Song, Xi J. and Jones, Laura E. and Helmberger, Donald V.",
    title = "Source characteristics of the 17 January 1994 Northridge, California, earthquake from regional broadband modeling",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-082930182",
    id = "https://authors.library.caltech.edu/records/8k7xv-4dt07",
    issn = "0037-1106",
    volume = "85",
    number = "6",
    pages = "1591-1603"
}


@article{https://authors.library.caltech.edu/records/0c8ft-dpb12,
    authors = "Mori, Jim and Helmberger, Donald V.",
    title = "Localized boundary layer below the mid-Pacific velocity anomaly identified from a PeP precursor",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-100600084",
    id = "https://authors.library.caltech.edu/records/0c8ft-dpb12",
    issn = "0148-0227",
    doi = "10.1029/95JB02243",
    volume = "100",
    number = "B10",
    pages = "20,359-20,365"
}


@article{https://authors.library.caltech.edu/records/gggvr-7zp40,
    authors = "Garnero, Edward J. and Helmberger, Donald V.",
    title = "A very slow basal layer underlying large-scale low-velocity
 anomalies in the lower mantle beneath the Pacific:
 evidence from core phases",
    journal = "Physics of the Earth and Planetary Interiors",
    publisher = "Elsevier",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-105547056",
    id = "https://authors.library.caltech.edu/records/gggvr-7zp40",
    issn = "0031-9201",
    doi = "10.1016/0031-9201(95)03039-Y",
    volume = "91",
    number = "1-3",
    pages = "161-176"
}


@article{https://authors.library.caltech.edu/records/8e9mt-2mj07,
    authors = "Scrivner, Craig W. and Helmberger, Donald V.",
    title = "Preliminary work on an early warning and rapid response program for moderate earthquakes",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121212-074400392",
    id = "https://authors.library.caltech.edu/records/8e9mt-2mj07",
    issn = "0037-1106",
    volume = "85",
    number = "4",
    pages = "1257-1265"
}


@article{https://authors.library.caltech.edu/records/050d4-dk311,
    authors = "Song, Xiaodong and Helmberger, Don V.",
    title = "A P wave velocity model of Earth's core",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121127-152015147",
    id = "https://authors.library.caltech.edu/records/050d4-dk311",
    issn = "0148-0227",
    doi = "10.1029/94JB03135",
    volume = "100",
    number = "B7",
    pages = "9817-9830"
}


@article{https://authors.library.caltech.edu/records/sak0e-wvh26,
    authors = "Song, Xiaodong and Helmberger, Don V.",
    title = "Depth dependence of anisotropy of Earth's inner core",
    journal = "Journal of Geophysical Research B",
    publisher = "American Geophysical Union",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121128-094644476",
    id = "https://authors.library.caltech.edu/records/sak0e-wvh26",
    issn = "0148-0227",
    doi = "10.1029/95JB00244",
    volume = "100",
    number = "B6",
    pages = "9805-9816"
}


@article{https://authors.library.caltech.edu/records/vehzs-tt773,
    authors = "Garnero, Edward J. and Helmberger, Donald V.",
    title = "On seismic resolution of lateral heterogeneity in the Earth's  outermost core",
    journal = "Physics of the Earth and Planetary Interiors",
    publisher = "Elsevier",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121205-104754253",
    id = "https://authors.library.caltech.edu/records/vehzs-tt773",
    issn = "0031-9201",
    doi = "10.1016/0031-9201(94)02976-I",
    volume = "88",
    number = "2",
    pages = "117-130"
}


@article{https://authors.library.caltech.edu/records/sdj19-s2723,
    authors = "Scrivner, Craig W. and Helmberger, Donald V.",
    title = "Seismic Waveform Modeling in the Los Angeles Basin",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1994",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-141510926",
    id = "https://authors.library.caltech.edu/records/sdj19-s2723",
    issn = "0037-1106",
    volume = "84",
    number = "5",
    pages = "1310-1326"
}


@article{https://authors.library.caltech.edu/records/ybzbb-bd849,
    authors = "Saikia, Chandan K. and Dreger, Douglas S. and Helmberger, Donald V.",
    title = "Modeling of Energy Amplification Recorded within Greater Los Angeles Using Irregular Structure",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1994",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140805-144300325",
    id = "https://authors.library.caltech.edu/records/ybzbb-bd849",
    issn = "0037-1106",
    volume = "84",
    number = "1",
    pages = "47-61"
}


@article{https://authors.library.caltech.edu/records/60jnq-pyz66,
    authors = "Zhao, Lian-She and Helmberger, Donald V.",
    title = "Source Estimation from Broadband Regional Seismograms",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1994",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-072507898",
    id = "https://authors.library.caltech.edu/records/60jnq-pyz66",
    issn = "0037-1106",
    volume = "84",
    number = "1",
    pages = "91-104"
}


@article{https://authors.library.caltech.edu/records/sjjv0-6yr77,
    authors = "Jones, L. E. and Hough, S. E. and Helmberger, D. V.",
    title = "Rupture process of the June 28, 1992 Big Bear Earthquake",
    journal = "Geophysical Research Letters",
    publisher = "American Geophysical Union",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140115-151138078",
    id = "https://authors.library.caltech.edu/records/sjjv0-6yr77",
    issn = "0094-8276",
    doi = "10.1029/93GL02046",
    volume = "20",
    number = "18",
    pages = "1907-1910"
}


@article{https://authors.library.caltech.edu/records/tsgqw-t8z34,
    authors = "Woods, Bradley B. and Kedar, Sharon and Helmberger, Donald V.",
    title = "M\_L:M\_0 as a regional seismic discriminant",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-133156297",
    id = "https://authors.library.caltech.edu/records/tsgqw-t8z34",
    issn = "0037-1106",
    volume = "83",
    number = "4",
    pages = "1167-1183"
}


@article{https://authors.library.caltech.edu/records/tmnhr-7ha12,
    authors = "Wald, David J. and Kanamori, Hiroo and Helmberger, Donald V. and Heaton, Thomas H.",
    title = "Source study of the 1906 San Francisco earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130204-090427264",
    id = "https://authors.library.caltech.edu/records/tmnhr-7ha12",
    issn = "0037-1106",
    volume = "83",
    number = "4",
    pages = "981-1019"
}


@article{https://authors.library.caltech.edu/records/fr359-2ad24,
    authors = "Helmberger, Donald V. and Dreger, Douglas S. and Stead, Richard and Kanamori, Hiroo",
    title = "Impact of Broadband Seismology on the Understanding of Strong Motions",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-091536952",
    id = "https://authors.library.caltech.edu/records/fr359-2ad24",
    issn = "0037-1106",
    volume = "83",
    number = "3",
    pages = "830-850"
}


@article{https://authors.library.caltech.edu/records/4aw2g-5j123,
    authors = "Garnero, E. J. and Helmberger, D. V. and Burdick, L. J.",
    title = "Preliminary observations from the use of US-Soviet Joint Seismic Program data to model upper mantle triplications beneath Asia",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20180329-152142655",
    id = "https://authors.library.caltech.edu/records/4aw2g-5j123",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.1993.tb02544.x",
    volume = "113",
    number = "1",
    pages = "252-259"
}


@article{https://authors.library.caltech.edu/records/fqsf4-gpr38,
    authors = "Helmberger, D. V. and Somerville, P. G. and Garnero, E. J.",
    title = "The Location and Source Parameters of the Lompoc, California, Earthquake of 4 November 1927",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1992",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-092337671",
    id = "https://authors.library.caltech.edu/records/fqsf4-gpr38",
    issn = "0037-1106",
    volume = "82",
    number = "4",
    pages = "1678-1709"
}


@article{https://authors.library.caltech.edu/records/e32bt-00z30,
    authors = "Wald, David J. and Hartzell, Stephen H. and Helmberger, Donald V.",
    title = {Reply to Arthur Frankel's "Comment on 'Rupture process of the 1987 Superstition Hills earthquake from the inversion of strong-motion data'"},
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1992",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-145332774",
    id = "https://authors.library.caltech.edu/records/e32bt-00z30",
    issn = "0037-1106",
    volume = "82",
    number = "3",
    pages = "1519-1533"
}


@article{https://authors.library.caltech.edu/records/fzhne-z0h12,
    authors = "Bent, Allison L. and Helmberger, Donald V.",
    title = "A re-examination of historic earthquakes in the San Jacinto fault zone, California",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-102033680",
    id = "https://authors.library.caltech.edu/records/fzhne-z0h12",
    issn = "0037-1106",
    volume = "81",
    number = "6",
    pages = "2289-2309"
}


@article{https://authors.library.caltech.edu/records/871pr-gyr75,
    authors = "Wald, David J. and Helmberger, Donald V. and Heaton, Thomas H.",
    title = "Rupture model of the 1989 Loma Prieta earthquake from the inversion of strong-motion and broadband teleseismic data",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121213-141842168",
    id = "https://authors.library.caltech.edu/records/871pr-gyr75",
    issn = "0037-1106",
    volume = "81",
    number = "5",
    pages = "1540-1572"
}


@article{https://authors.library.caltech.edu/records/serq6-hk251,
    authors = "Dreger, Douglas S. and Helmberger, Donald V.",
    title = "Complex faulting deduced from broadband modeling of the 28 February 1990 Upland earthquake (M\_L = 5.2)",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-130440939",
    id = "https://authors.library.caltech.edu/records/serq6-hk251",
    issn = "0037-1106",
    volume = "81",
    number = "4",
    pages = "1129-1144"
}


@article{https://authors.library.caltech.edu/records/xdxyp-ehz89,
    authors = "Zhao, Lian-She and Helmberger, Donald V. and Harkrider, David G.",
    title = "Shear-velocity structure of the crust and upper mantle beneath the Tibetan Plateau and southeastern China",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140317-131844927",
    id = "https://authors.library.caltech.edu/records/xdxyp-ehz89",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.1991.tb00807.x",
    volume = "105",
    number = "3",
    pages = "713-730"
}


@article{https://authors.library.caltech.edu/records/xrjqz-ybb15,
    authors = "Bent, Allison L. and Helmberger, Donald V.",
    title = "Seismic characteristics of earthquakes along the offshore extension of the western transverse ranges, California",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-085628992",
    id = "https://authors.library.caltech.edu/records/xrjqz-ybb15",
    issn = "0037-1106",
    volume = "81",
    number = "2",
    pages = "399-422"
}


@article{https://authors.library.caltech.edu/records/6et0f-18h59,
    authors = "Dreger, Douglas S. and Helmberger, Donald V.",
    title = "Broadband modeling of local earthquakes",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1990",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-132043510",
    id = "https://authors.library.caltech.edu/records/6et0f-18h59",
    issn = "0037-1106",
    volume = "80",
    number = "5",
    pages = "1162-1179"
}


@article{https://authors.library.caltech.edu/records/a2rxt-jdb66,
    authors = "Wald, David J. and Helmberger, Donald V. and Hartzell, Stephen H.",
    title = "Rupture process of the 1987 Superstition Hills earthquake from the inversion of strong-motion data",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1990",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-112708448",
    id = "https://authors.library.caltech.edu/records/a2rxt-jdb66",
    issn = "0037-1106",
    volume = "80",
    number = "5",
    pages = "1079-1098"
}


@article{https://authors.library.caltech.edu/records/cg4qb-18d85,
    authors = "Somerville, Paul G. and McLaren, James P. and Saikia, Chandan K. and Helmberger, Donald V.",
    title = "The 25 November 1988 Saguenay, Quebec, Earthquake: Source Parameters and the Attenuation of Strong Ground Motion",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1990",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140806-091659826",
    id = "https://authors.library.caltech.edu/records/cg4qb-18d85",
    issn = "0037-1106",
    volume = "80",
    number = "5",
    pages = "1118-1143"
}


@article{https://authors.library.caltech.edu/records/rqkab-0rt57,
    authors = "Bent, Allison L. and Helmberger, Donald V. and Stead, Richard J. and Ho-Liu, Phyllis",
    title = "Waveform modeling of the November 1987 Superstition Hills earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1989",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-084517783",
    id = "https://authors.library.caltech.edu/records/rqkab-0rt57",
    issn = "0037-1106",
    volume = "79",
    number = "2",
    pages = "500-514"
}


@article{https://authors.library.caltech.edu/records/dww56-kz639,
    authors = "Stead, Richard J. and Helmberger, Donald V.",
    title = "Numerical-analytical interfacing in two dimensions with applications to modeling NTS seismograms",
    journal = "Pure and Applied Geophysics",
    publisher = "Springer",
    year = "1988",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190214-145049962",
    id = "https://authors.library.caltech.edu/records/dww56-kz639",
    issn = "0033-4553",
    doi = "10.1007/BF01772596",
    volume = "128",
    number = "1-2",
    pages = "157-193"
}


@article{https://authors.library.caltech.edu/records/hv0eg-kj485,
    authors = "Vidale, John E. and Helmberger, Donald V.",
    title = "Elastic finite-difference modeling of the 1971 San Fernando, California earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1988",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-142912635",
    id = "https://authors.library.caltech.edu/records/hv0eg-kj485",
    issn = "0037-1106",
    volume = "78",
    number = "1",
    pages = "122-141"
}


@article{https://authors.library.caltech.edu/records/e1v01-4bk80,
    authors = "Helmberger, Donald V. and Vidale, John E.",
    title = "Modeling strong motions produced by earthquakes with two-dimensional numerical codes",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1988",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-142251802",
    id = "https://authors.library.caltech.edu/records/e1v01-4bk80",
    issn = "0037-1106",
    volume = "78",
    number = "1",
    pages = "109-121"
}


@article{https://authors.library.caltech.edu/records/tjcwq-wfn56,
    authors = "Somerville, P. G. and McLaren, J. P. and LeFevre, L. V. and Burger, R. W. and Helmberger, D. V.",
    title = "Comparison of source scaling relations of eastern and western North American earthquakes",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1987",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-134502150",
    id = "https://authors.library.caltech.edu/records/tjcwq-wfn56",
    issn = "0037-1106",
    volume = "77",
    number = "2",
    pages = "322-346"
}


@article{https://authors.library.caltech.edu/records/q0nfd-n2x62,
    authors = "Burger, R. W. and Somerville, P. G. and Barker, J. S. and Herrmann, R. B. and Helmberger, D. V.",
    title = "The effect of crustal structure on strong ground motion attenuation relations in eastern North America",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1987",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-143830541",
    id = "https://authors.library.caltech.edu/records/q0nfd-n2x62",
    issn = "0037-1106",
    volume = "77",
    number = "2",
    pages = "420-439"
}


@article{https://authors.library.caltech.edu/records/z7h9s-5ca17,
    authors = "Wallace, T. C. and Helmberger, D. V. and Lay, T.",
    title = "Reply to comments by A. Douglas, J. B. Young, and N. S. Lyman and a note on the revised moments for Pahute Mesa tectonic release",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1986",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-142331911",
    id = "https://authors.library.caltech.edu/records/z7h9s-5ca17",
    issn = "0037-1106",
    volume = "76",
    number = "1",
    pages = "313-318"
}


@article{https://authors.library.caltech.edu/records/exsxt-3td65,
    authors = "Vidale, John and Helmberger, Donald V. and Clayton, Robert W.",
    title = "Finite-difference seismograms for SH waves",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1985",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121017-100933090",
    id = "https://authors.library.caltech.edu/records/exsxt-3td65",
    issn = "0037-1106",
    volume = "75",
    number = "6",
    pages = "1765-1782"
}


@article{https://authors.library.caltech.edu/records/fbwzs-cqn32,
    authors = "Liu, Hsui-Lin and Helmberger, Donald V.",
    title = "The 23:19 aftershock of the 15 October 1979 Imperial Valley earthquake: More evidence for an asperity",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1985",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-134554322",
    id = "https://authors.library.caltech.edu/records/fbwzs-cqn32",
    issn = "0037-1106",
    volume = "75",
    number = "3",
    pages = "689-708"
}


@article{https://authors.library.caltech.edu/records/m7kmy-rdh35,
    authors = "Scott, Patricia and Helmberger, Donald V.",
    title = "Applications of the transmitted Kirchhoff-Holmholtz method to transmitted body waves and possible structural effects at NTS",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1985",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-143111079",
    id = "https://authors.library.caltech.edu/records/m7kmy-rdh35",
    issn = "0037-1106",
    volume = "75",
    number = "1",
    pages = "131-156"
}


@article{https://authors.library.caltech.edu/records/d01zp-yq109,
    authors = "Wallace, Terry C. and Helmberger, Donald V. and Engen, Gladys R.",
    title = "Evidence of tectonic release from underground nuclear explosions in long-period S waves",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1985",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-133439918",
    id = "https://authors.library.caltech.edu/records/d01zp-yq109",
    issn = "0037-1106",
    volume = "75",
    number = "1",
    pages = "157-174"
}


@article{https://authors.library.caltech.edu/records/g0j9r-bj492,
    authors = "Lay, Thorne and Helmberger, Don V. and Harkrider, David G.",
    title = "Source models and yield-scaling relations for underground nuclear explosions at Amchitka Island",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1984",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140313-153952350",
    id = "https://authors.library.caltech.edu/records/g0j9r-bj492",
    issn = "0037-1106",
    volume = "74",
    number = "3",
    pages = "843-862"
}


@article{https://authors.library.caltech.edu/records/cykt8-b1q20,
    authors = "Lay, Thorne and Wallace, Terry C. and Helmberger, Don V.",
    title = "The effects of tectonic release on short-period P waves from NTS explosions",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1984",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-144348983",
    id = "https://authors.library.caltech.edu/records/cykt8-b1q20",
    issn = "0037-1106",
    volume = "74",
    number = "3",
    pages = "819-842"
}


@article{https://authors.library.caltech.edu/records/4amqa-avr52,
    authors = "Lay, Thorne and Helmberger, Donald V.",
    title = "Body-wave amplitude and travel-time correlations across North America",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1983",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-105154431",
    id = "https://authors.library.caltech.edu/records/4amqa-avr52",
    issn = "0037-1106",
    volume = "73",
    number = "4",
    pages = "1063-1076"
}


@article{https://authors.library.caltech.edu/records/jpw2b-q3c40,
    authors = "Liu, Hsui-Lin and Helmberger, Donald V.",
    title = "The near-source ground motion of the 6 August 1979 Coyote Lake, California, earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1983",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-144021468",
    id = "https://authors.library.caltech.edu/records/jpw2b-q3c40",
    issn = "0037-1106",
    volume = "73",
    number = "1",
    pages = "201-218"
}


@article{https://authors.library.caltech.edu/records/149mj-ghv73,
    authors = "Hadley, David M. and Helmberger, Donald V. and Orcutt, John A.",
    title = "Peak acceleration scaling studies",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1982",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140903-082810865",
    id = "https://authors.library.caltech.edu/records/149mj-ghv73",
    issn = "0037-1106",
    volume = "72",
    number = "3",
    pages = "959-979"
}


@article{https://authors.library.caltech.edu/records/0fgmq-bgh05,
    authors = "Ebel, John E. and Helmberger, Donald V.",
    title = "P-wave complexity and fault asperities: The Borrego Mountain, California, earthquake of 1968",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1982",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-135344882",
    id = "https://authors.library.caltech.edu/records/0fgmq-bgh05",
    issn = "0037-1106",
    volume = "72",
    number = "2",
    pages = "413-437"
}


@article{https://authors.library.caltech.edu/records/ry4cv-8f912,
    authors = "Hartzell, Stephen and Helmberger, Donald V.",
    title = "Strong-motion modeling of the Imperial Valley earthquake of 1979",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1982",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-150007304",
    id = "https://authors.library.caltech.edu/records/ry4cv-8f912",
    issn = "0037-1106",
    volume = "72",
    number = "2",
    pages = "571-596"
}


@article{https://authors.library.caltech.edu/records/gqa0s-13376,
    authors = "Wallace, Terry C. and Helmberger, Don V. and Ebel, John E.",
    title = "A broadband study of the 13 August 1978 Santa Barbara earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1981",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140903-131025027",
    id = "https://authors.library.caltech.edu/records/gqa0s-13376",
    issn = "0037-1106",
    volume = "71",
    number = "6",
    pages = "1701-1718"
}


@article{https://authors.library.caltech.edu/records/8hyjb-1rg10,
    authors = "Helmberger, Donald V. and Hadley, David M.",
    title = "Seismic source functions and attenuation from local and teleseismic observations of the NTS events Jorum and Handley",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1981",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-135856907",
    id = "https://authors.library.caltech.edu/records/8hyjb-1rg10",
    issn = "0037-1106",
    volume = "71",
    number = "1",
    pages = "51-67"
}


@article{https://authors.library.caltech.edu/records/99y4a-4vh62,
    authors = "Helmberger, D. V. and Engen, G. R.",
    title = "Modeling the long-period body waves from shallow earthquakes at regional ranges",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1980",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140819-154914308",
    id = "https://authors.library.caltech.edu/records/99y4a-4vh62",
    issn = "0037-1106",
    volume = "70",
    number = "5",
    pages = "1699-1714"
}


@article{https://authors.library.caltech.edu/records/d7t62-9vh60,
    authors = "Hadley, David M. and Helmberger, Donald V.",
    title = "Simulation of strong ground motions",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1980",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-150957130",
    id = "https://authors.library.caltech.edu/records/d7t62-9vh60",
    issn = "0037-1106",
    volume = "70",
    number = "2",
    pages = "617-630"
}


@article{https://authors.library.caltech.edu/records/7dc6r-g9z51,
    authors = "Heaton, Thomas H. and Helmberger, Donald V.",
    title = "Generalized ray models of the San Fernando Earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1979",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130204-115012596",
    id = "https://authors.library.caltech.edu/records/7dc6r-g9z51",
    issn = "0037-1106",
    volume = "69",
    number = "5",
    pages = "1311-1341"
}


@article{https://authors.library.caltech.edu/records/76gqd-av563,
    authors = "Burdick, L. J. and Helmberger, D. V.",
    title = "Time functions appropriate for nuclear explosions",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1979",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-093107459",
    id = "https://authors.library.caltech.edu/records/76gqd-av563",
    issn = "0037-1106",
    volume = "69",
    number = "4",
    pages = "957-973"
}


@article{https://authors.library.caltech.edu/records/ndds5-5yr05,
    authors = "Helmberger, D. V. and Burdick, L. J.",
    title = "Synthetic Seismograms",
    journal = "Annual Review of Earth and Planetary Sciences",
    publisher = "Annual Reviews",
    year = "1979",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20161019-104218647",
    id = "https://authors.library.caltech.edu/records/ndds5-5yr05",
    issn = "0084-6597",
    doi = "10.1146/annurev.ea.07.050179.002221",
    volume = "7",
    pages = "417-442"
}


@article{https://authors.library.caltech.edu/records/5hdnw-9aa60,
    authors = "Hong, Tai-Lin and Helmberger, Donald V.",
    title = "Glorified optics and wave propagation in nonplanar structure",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1978",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140826-142149049",
    id = "https://authors.library.caltech.edu/records/5hdnw-9aa60",
    issn = "0037-1106",
    volume = "68",
    number = "5",
    pages = "1313-1330"
}


@article{https://authors.library.caltech.edu/records/hd4y2-xtv31,
    authors = "Mellman, George R. and Helmberger, Donald V.",
    title = "A modified first-motion approximation for the synthesis of body-wave seismograms",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "1978",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170410-085310544",
    id = "https://authors.library.caltech.edu/records/hd4y2-xtv31",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.1978.tb06760.x",
    volume = "54",
    number = "1",
    pages = "129-140"
}


@article{https://authors.library.caltech.edu/records/3v0yd-9gy34,
    authors = "Helmberger, D. V. and Engen, G.",
    title = "Fine structure of an oceanic crustal section near the East Pacific Rise",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1978",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-145221942",
    id = "https://authors.library.caltech.edu/records/3v0yd-9gy34",
    issn = "0037-1106",
    volume = "68",
    number = "2",
    pages = "369-382"
}


@article{https://authors.library.caltech.edu/records/4844q-9x755,
    authors = "Harkrider, D. G. and Helmberger, D. V.",
    title = "A note on nonequivalent quadrupole source cylindrical shear potentials which give equal displacements",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1978",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140313-153000014",
    id = "https://authors.library.caltech.edu/records/4844q-9x755",
    issn = "0037-1106",
    volume = "68",
    number = "1",
    pages = "125-132"
}


@article{https://authors.library.caltech.edu/records/00x1b-j8365,
    authors = "Heaton, Thomas H. and Helmberger, Donald V.",
    title = "Predictability of strong ground motion in the Imperial Valley: Modeling the M4.9, November 4, 1976 Brawley earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1978",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121121-100923266",
    id = "https://authors.library.caltech.edu/records/00x1b-j8365",
    issn = "0037-1106",
    volume = "68",
    number = "1",
    pages = "31-48"
}


@article{https://authors.library.caltech.edu/records/02pkk-pjy87,
    authors = "Hong, Tai-Lin and Helmberger, Donald V.",
    title = "Generalized ray theory for dipping structure",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1977",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140813-132752346",
    id = "https://authors.library.caltech.edu/records/02pkk-pjy87",
    issn = "0037-1106",
    volume = "67",
    number = "4",
    pages = "995-1008"
}


@article{https://authors.library.caltech.edu/records/fqn90-xg194,
    authors = "Heaton, Thomas H. and Helmberger, Donald V.",
    title = "A study of the strong ground motion of the Borrego Mountain, California, earthquake",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1977",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20121121-102148439",
    id = "https://authors.library.caltech.edu/records/fqn90-xg194",
    issn = "0037-1106",
    volume = "67",
    number = "2",
    pages = "315-330"
}


@article{https://authors.library.caltech.edu/records/twyb2-cmf88,
    authors = "Helmberger, Donald V. and Johnson, Lane R.",
    title = "Source parameters of moderate size earthquakes and the importance of receiver crustal structure in interpreting observations of local earthquakes",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1977",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-134040627",
    id = "https://authors.library.caltech.edu/records/twyb2-cmf88",
    issn = "0037-1106",
    volume = "67",
    number = "2",
    pages = "301-313"
}


@article{https://authors.library.caltech.edu/records/m5v4y-3gf03,
    authors = "King, David and Helmberger, Donald V.",
    title = "Time functions appropriate for some aftershocks of the Point Mugu, California earthquake of February 21, 1973",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1975",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-121312275",
    id = "https://authors.library.caltech.edu/records/m5v4y-3gf03",
    issn = "0037-1106",
    volume = "65",
    number = "1",
    pages = "127-132"
}


@article{https://authors.library.caltech.edu/records/4732v-sg823,
    authors = "Langston, Charles A. and Helmberger, Donald V.",
    title = "Interpretation of body and Rayleigh waves from NTS to Tucson",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1974",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140919-131512193",
    id = "https://authors.library.caltech.edu/records/4732v-sg823",
    issn = "0037-1106",
    volume = "64",
    number = "6",
    pages = "1919-1929"
}


@article{https://authors.library.caltech.edu/records/c5hx4-6bz02,
    authors = "Mellman, George R. and Helmberger, Donald V.",
    title = "High-frequency attenuation by a thin high-velocity layer",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1974",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140902-153934113",
    id = "https://authors.library.caltech.edu/records/c5hx4-6bz02",
    issn = "0037-1106",
    volume = "64",
    number = "5",
    pages = "1383-1388"
}


@article{https://authors.library.caltech.edu/records/f39w6-ttv74,
    authors = "Burdick, L. J. and Helmberger, D. V.",
    title = "Time functions appropriate for deep earthquakes",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1974",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140912-092026540",
    id = "https://authors.library.caltech.edu/records/f39w6-ttv74",
    issn = "0037-1106",
    volume = "64",
    number = "5",
    pages = "1419-1427"
}


@article{https://authors.library.caltech.edu/records/tabam-cyg37,
    authors = "Helmberger, Donald V.",
    title = "Generalized ray theory for shear dislocations",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1974",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-114912491",
    id = "https://authors.library.caltech.edu/records/tabam-cyg37",
    issn = "0037-1106",
    volume = "64",
    number = "1",
    pages = "45-64"
}


@article{https://authors.library.caltech.edu/records/rgdr3-gyx54,
    authors = "Helmberger, Donald V.",
    title = "Numerical seismograms of long-period body waves from seventeen to forty degrees",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1973",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-162944071",
    id = "https://authors.library.caltech.edu/records/rgdr3-gyx54",
    issn = "0037-1106",
    volume = "63",
    number = "2",
    pages = "633-646"
}


@article{https://authors.library.caltech.edu/records/7ds6x-ecj86,
    authors = "Helmberger, D. V. and Harkrider, D. G.",
    title = "Seismic Source Descriptions of Underground Explosions and a Depth Discriminate",
    journal = "Geophysical Journal International",
    publisher = "Royal Astronomical Society",
    year = "1972",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20151029-082401562",
    id = "https://authors.library.caltech.edu/records/7ds6x-ecj86",
    issn = "0956-540X",
    doi = "10.1111/j.1365-246X.1972.tb02358.x",
    volume = "31",
    number = "1-3",
    pages = "45-66"
}


@article{https://authors.library.caltech.edu/records/wf1mf-18227,
    authors = "Helmberger, Donald V.",
    title = "Long-period body-wave propagation from 4° to 13°",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1972",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-141724157",
    id = "https://authors.library.caltech.edu/records/wf1mf-18227",
    issn = "0037-1106",
    volume = "62",
    number = "1",
    pages = "325-341"
}


@article{https://authors.library.caltech.edu/records/wz2xg-99x69,
    authors = "Abrams, M. and Allen, C. and Anderson, D. and Berkey, N. and Carey, D. and Carter, B. and Davies, G. and Engen, G. and Foley, M. and Hanks, T. and Helmberger, D. and Hileman, J. and Jordan, T. and Jungels, P. and Kamb, B. and Liu, H. and Minster, B. and Nordquist, J. and Penrose, B. and Silver, L. and Smith, R. and Thatcher, W. and Thomsen, L. and Whitcomb, J. and Wood, S.",
    title = "Preliminary seismological and geological studies of the San Fernando, California, earthquake of February 9 1971",
    journal = "Bulletin of the Seismological Society of America",
    publisher = "Seismological Society of America",
    year = "1971",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140812-151015768",
    id = "https://authors.library.caltech.edu/records/wz2xg-99x69",
    issn = "0037-1106",
    volume = "61",
    number = "2",
    pages = "491-495"
}