@other{https://resolver.caltech.edu/CaltechEERL:1967.EERL.1967.001,
    title = "Stationary random response of bilinear hysteretic systems",
    year = "1967",
    url = "https://resolver.caltech.edu/CaltechEERL:1967.EERL.1967.001",
    id = "record"
}


@other{https://resolver.caltech.edu/CaltechEERL:1965.DYNL.1965.002,
    title = "Numerical response characteristics of a uniform beam carrying one discrete load",
    year = "1965",
    url = "https://resolver.caltech.edu/CaltechEERL:1965.DYNL.1965.002",
    id = "record"
}