@other{https://resolver.caltech.edu/CaltechETD:etd-04122004-144125,
    title = "Applications of the Quaternions to the Study of Imaginary Quadratic Ring Class Groups",
    year = "1981",
    url = "https://resolver.caltech.edu/CaltechETD:etd-04122004-144125",
    id = "record",
    doi = "10.7907/2G8A-Y604"
}