@other{https://resolver.caltech.edu/CaltechETD:etd-11092007-094509,
    title = "Aerosol Data Inversion: Optimal Solutions and Information Content",
    year = "1990",
    url = "https://resolver.caltech.edu/CaltechETD:etd-11092007-094509",
    id = "record",
    doi = "10.7907/efdm-c587"
}