@other{https://resolver.caltech.edu/CaltechETD:etd-01142008-074714,
    title = "Mutagenic particulate matter in air pollutant source emissions and in ambient air",
    year = "1997",
    url = "https://resolver.caltech.edu/CaltechETD:etd-01142008-074714",
    id = "record",
    doi = "10.7907/sy80-yz77"
}