@other{https://resolver.caltech.edu/CaltechEERL:1986.EERL-86-02,
    title = "Some observations on the random response of hysteretic systems",
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    url = "https://resolver.caltech.edu/CaltechEERL:1986.EERL-86-02",
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}


@other{https://resolver.caltech.edu/CaltechAUTHORS:20110207-100340630,
    title = "Approximate analysis and stability of pressure oscillations in ramjets",
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    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110207-100340630",
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}


@other{https://resolver.caltech.edu/CaltechAUTHORS:20110207-102353008,
    title = "Remarks on the two-mode approximation to the nonlinear behavior of pressure oscillations in combustion chambers",
    year = "1976",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20110207-102353008",
    id = "record"
}