@other{https://authors.library.caltech.edu/records/6m7tg-mf864,
    author = "Horgen, H. M. and Villagrana, R. E. and Maher, D. M.",
    title = "Computer Enhancement of High Resolution Electron Micrographs Containing Weak Periodic Information",
    year = "2015",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150311-081723790",
    id = "https://authors.library.caltech.edu/records/6m7tg-mf864"
}


@other{https://authors.library.caltech.edu/records/fjk4q-mtj28,
    author = "Horgen, H. M. and Villagrana, R. E. and Maher, D. M.",
    title = "Computer Enhancement of Weak-Beam Images",
    year = "2015",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150305-101206985",
    id = "https://authors.library.caltech.edu/records/fjk4q-mtj28"
}


@article{https://authors.library.caltech.edu/records/dexdx-n1e17,
    author = "Lewis, Alan L. and Villagrana, Robert E.",
    title = "Perturbation Treatment of High-Energy-Electron Diffraction from Imperfect Crystals",
    year = "1972",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150127-080422520",
    id = "https://authors.library.caltech.edu/records/dexdx-n1e17",
    issn = "1098-0121",
    doi = "10.1103/PhysRevB.6.4382",
    volume = "6",
    number = "12",
    pages = "4382-4392"
}