@other{https://resolver.caltech.edu/CaltechETD:etd-08252008-111253,
    title = "Applications of black-hole perturbation techniques",
    url = "https://resolver.caltech.edu/CaltechETD:etd-08252008-111253",
    id = "record",
    doi = "10.7907/0HKZ-DJ23"
}