@other{https://resolver.caltech.edu/CaltechEERL:1968.EERL.1968.002,
    title = "Digital calculation of response spectra from strong-motion earthquake records",
    url = "https://resolver.caltech.edu/CaltechEERL:1968.EERL.1968.002",
    id = "record"
}


@other{https://resolver.caltech.edu/CaltechEERL:1967.EERL.1967.006,
    title = "Inelastic interactions in the dynamic response of structures",
    url = "https://resolver.caltech.edu/CaltechEERL:1967.EERL.1967.006",
    id = "record"
}