@other{https://thesis.library.caltech.edu/id/eprint/7257,
    author = "Levine, Paul Hersh",
    title = "Phase space formulation of the quantum many-body problem",
    year = "1963",
    url = "https://resolver.caltech.edu/CaltechTHESIS:11062012-103119433",
    id = "https://thesis.library.caltech.edu/id/eprint/7257",
    doi = "10.7907/2JYR-A438"
}