@other{https://resolver.caltech.edu/CaltechTHESIS:06192013-175010723,
    title = "Tools for the Study of Dynamical Spacetimes",
    url = "https://resolver.caltech.edu/CaltechTHESIS:06192013-175010723",
    id = "record",
    doi = "10.7907/Z9WD3XHF"
}