@other{https://resolver.caltech.edu/CaltechAUTHORS:20170123-102526863,
    title = "Tensor Spherical Harmonics",
    year = "1981",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170123-102526863",
    id = "record"
}


@other{https://resolver.caltech.edu/CaltechAUTHORS:20180130-104947145,
    title = "A Study of the Second-Difference Method for Radial Magnet Alignment",
    year = "1962",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20180130-104947145",
    id = "record",
    doi = "10.7907/Z9TQ5ZR7"
}