@other{https://resolver.caltech.edu/CaltechTHESIS:01042016-132544422,
    title = "Carbon-13 magnetic resonance spectroscopy",
    year = "1968",
    url = "https://resolver.caltech.edu/CaltechTHESIS:01042016-132544422",
    id = "record",
    doi = "10.7907/2KB0-DB51"
}