@other{https://authors.library.caltech.edu/records/5v6gn-yxj86,
    authors = "Bateman, H.",
    title = "The Inertial Coefficients of an Airship in a Frictionless Fluid",
    publisher = "National Advisory Committee on Aeronautics",
    year = "1924",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140804-113134879",
    id = "https://authors.library.caltech.edu/records/5v6gn-yxj86"
}


@other{https://authors.library.caltech.edu/records/n18f6-3bd86,
    authors = "Bateman, H.",
    title = "The decay of a simple eddy",
    publisher = "National Advisory Committee on Aeronautics",
    year = "1923",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140804-112342128",
    id = "https://authors.library.caltech.edu/records/n18f6-3bd86"
}