@other{https://resolver.caltech.edu/CaltechETD:etd-09022008-144208,
    title = "Supermassive black holes in galactic nuclei",
    url = "https://resolver.caltech.edu/CaltechETD:etd-09022008-144208",
    id = "record",
    doi = "10.7907/mcgd-jp70"
}