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    title = "Acoustic Non-Reciprocity in Lattices With Nonlinearity, Internal Hierarchy, and Asymmetry: Computational Study",
    journal = "Journal of Vibration and Acoustics",
    year = "2019",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190802-154910921",
    id = "record",
    issn = "1048-9002",
    doi = "10.1115/1.4043783",
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    title = "ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference",
    chapter = "Non-Reciprocity in Structures With Nonlinear Internal Hierarchy and Asymmetry",
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    url = "https://resolver.caltech.edu/CaltechAUTHORS:20180215-140456213",
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    title = "Frequency bands of strongly nonlinear homogeneous granular systems",
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    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130826-112439730",
    id = "record",
    issn = "1539-3755",
    doi = "10.1103/PhysRevE.88.012206",
    volume = "88"
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    title = "1990 IEEE International Conference on Systems, Man, and Cybernetics Conference Proceedings",
    chapter = "On the periodic motions of simple hopping robots",
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@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20190611-155909131,
    title = "Proceedings, 1990 IEEE International Conference on Robotics and Automation",
    chapter = "Chaotic motions in the dynamics of a hopping robot",
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    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190611-155909131",
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