@other{https://resolver.caltech.edu/CaltechETD:etd-01072008-082023,
    title = "A computational approach to nonlinear system analysis",
    url = "https://resolver.caltech.edu/CaltechETD:etd-01072008-082023",
    id = "record",
    doi = "10.7907/4txk-p492"
}