@other{https://resolver.caltech.edu/CaltechEERL:1971.EERL-71-01,
    title = "Forced vibration of a 22-story steel frame building",
    url = "https://resolver.caltech.edu/CaltechEERL:1971.EERL-71-01",
    id = "record"
}


@other{https://resolver.caltech.edu/CaltechEERL:1971.EERL-71-07,
    title = "Modal coupling and earthquake response of tall buildings",
    url = "https://resolver.caltech.edu/CaltechEERL:1971.EERL-71-07",
    id = "record"
}