@other{https://resolver.caltech.edu/CaltechEERL:1964.DYNL.1964.002,
    title = "Dynamics of thin-walled beams of open section",
    year = "1964",
    url = "https://resolver.caltech.edu/CaltechEERL:1964.DYNL.1964.002",
    id = "record"
}