@other{https://resolver.caltech.edu/CaltechTHESIS:02062018-094459638,
    title = "The Lithia Pegmatites of Pala and Mesa Grande, San Diego County, California",
    url = "https://resolver.caltech.edu/CaltechTHESIS:02062018-094459638",
    id = "record",
    doi = "10.7907/4074-Q166"
}


@other{https://resolver.caltech.edu/CaltechTHESIS:01112010-103035470,
    title = "Preliminary Report of the Geology of the Julian Region, California",
    url = "https://resolver.caltech.edu/CaltechTHESIS:01112010-103035470",
    id = "record",
    doi = "10.7907/G5C6-NW08"
}