@book{https://authors.library.caltech.edu/records/a6ncs-ntm83,
    author = "Libbrecht, Kenneth G.",
    title = "Snow Crystal Structure",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20201008-112317470",
    id = "https://authors.library.caltech.edu/records/a6ncs-ntm83",
    isbn = "9789048126415",
    doi = "10.1007/978-90-481-2642-2\_662",
    pages = "1038-1041"
}


@book{https://authors.library.caltech.edu/records/2xm3a-yg524,
    author = "Libbrecht, K. G. and Woodard, M. F.",
    title = "Observations of solar cycle variations in solar p-mode frequencies and splittings",
    year = "1990",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20201008-112317386",
    id = "https://authors.library.caltech.edu/records/2xm3a-yg524",
    isbn = "9783540530916",
    doi = "10.1007/3-540-53091-6\_75",
    pages = "145-156"
}


@book{https://authors.library.caltech.edu/records/tgtbz-s7550,
    author = "Libbrecht, Ken G.",
    title = "Fine Structure in Solar Oscillation Spectra",
    year = "1987",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20201008-112317661",
    id = "https://authors.library.caltech.edu/records/tgtbz-s7550",
    isbn = "9789401082334",
    doi = "10.1007/978-94-009-3903-5\_8",
    pages = "59-62"
}