@other{https://resolver.caltech.edu/CaltechTHESIS:05312017-000636495,
    title = "Compressing Positive Semidefinite Operators with Sparse/Localized Bases",
    year = "2017",
    url = "https://resolver.caltech.edu/CaltechTHESIS:05312017-000636495",
    id = "record",
    doi = "10.7907/Z91N7Z5J"
}