@other{https://resolver.caltech.edu/CaltechTHESIS:05282015-144505104,
    title = "Free algebras in Von Neumann-Bernays-Gӧdel set theory and positive elementary inductions in reasonable structures",
    url = "https://resolver.caltech.edu/CaltechTHESIS:05282015-144505104",
    id = "record",
    doi = "10.7907/62t8-9b85"
}