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    title = "Problems – and Answers – in Macromolecular Crystallography",
    publisher = "Caltech Library",
    url = "https://authors.library.caltech.edu/records/rvzkd-kt658",
    id = "record",
    doi = "10.7907/rvzkd-kt658"
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    title = "Notes on Macromolecular Crystallography from the Turn of the Century",
    publisher = "Caltech Library",
    url = "https://authors.library.caltech.edu/records/1pxvf-tsb51",
    id = "record",
    doi = "10.7907/1pxvf-tsb51"
}


@other{https://authors.library.caltech.edu/records/zttgy-tes30,
    title = "Crystallographic Compendium",
    publisher = "Caltech Library",
    url = "https://authors.library.caltech.edu/records/zttgy-tes30",
    id = "record",
    doi = "10.7907/zttgy-tes30"
}