@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20170301-101543100,
    title = "Active Galactic Nuclei",
    chapter = "Spectral Energy Distributions of PG Quasars",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170301-101543100",
    id = "record",
    isbn = "0-7923-0256-7"
}