@other{https://resolver.caltech.edu/CaltechTHESIS:03192015-141813901,
    title = "Finite differences and a coupled analytic technique with applications to explosions and earthquakes",
    url = "https://resolver.caltech.edu/CaltechTHESIS:03192015-141813901",
    id = "record",
    doi = "10.7907/gsvf-5426"
}