@article{https://resolver.caltech.edu/CaltechAUTHORS:TSOjam65,
    title = "Parametric Excitation of a Nonlinear System",
    journal = "Journal of Applied Mechanics",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:TSOjam65",
    id = "record",
    issn = "0021-8936",
    volume = "32"
}


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