@other{https://resolver.caltech.edu/CaltechTHESIS:03252013-104520935,
    title = "Topics in bifurcation theory",
    url = "https://resolver.caltech.edu/CaltechTHESIS:03252013-104520935",
    id = "record",
    doi = "10.7907/xv6r-jf75"
}