@other{https://resolver.caltech.edu/CaltechETD:etd-07172007-083859,
    title = "Inorganic Components of Atmospheric Aerosols",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechETD:etd-07172007-083859",
    id = "record",
    doi = "10.7907/EYF6-3M05"
}