@other{https://resolver.caltech.edu/CaltechETD:etd-12042003-110450,
    title = "A Study of the Effects of Damping on Normal Modes of Electrical and Mechanical Systems",
    year = "1955",
    url = "https://resolver.caltech.edu/CaltechETD:etd-12042003-110450",
    id = "record",
    doi = "10.7907/YESX-K771"
}


@other{https://resolver.caltech.edu/CaltechETD:etd-12152003-110324,
    title = "An Analog Computer for the Solution of Eigenvalue Problems",
    year = "1955",
    url = "https://resolver.caltech.edu/CaltechETD:etd-12152003-110324",
    id = "record",
    doi = "10.7907/FK46-6J12"
}


@other{https://resolver.caltech.edu/CaltechETD:etd-04222003-140332,
    title = "Networks Involving Ideal Transformers",
    year = "1953",
    url = "https://resolver.caltech.edu/CaltechETD:etd-04222003-140332",
    id = "record",
    doi = "10.7907/JY4D-QP61"
}