@other{https://resolver.caltech.edu/CaltechETD:etd-05062004-154106,
    title = "Studies of physicochemical processes in atmospheric particles and acid deposition",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechETD:etd-05062004-154106",
    id = "record",
    doi = "10.7907/Z6AN-AJ83"
}