@other{https://resolver.caltech.edu/CaltechEQL:EQL-M-16,
    title = "Emissions and air quality trends in the South Coast Air Basin",
    year = "2009",
    url = "https://resolver.caltech.edu/CaltechEQL:EQL-M-16",
    id = "record",
    doi = "10.7907/Z9J67DWH"
}