@other{https://resolver.caltech.edu/CaltechTHESIS:10292015-093835228,
    title = "Sputtering of insulators in the electronic stopping region",
    year = "1979",
    url = "https://resolver.caltech.edu/CaltechTHESIS:10292015-093835228",
    id = "record",
    doi = "10.7907/b5x2-gf26"
}