@article{https://resolver.caltech.edu/CaltechAUTHORS:20190816-151854232,
    title = "On solitary waves. Part 2. A unified perturbation theory for higher-order waves",
    journal = "Acta Mechanica Sinica",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190816-151854232",
    id = "record",
    issn = "0567-7718",
    doi = "10.1007/s10409-005-0071-5",
    volume = "21"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:20201211-170108752,
    title = "A confidence limit for the empirical mode decomposition and Hilbert spectral analysis",
    journal = "Proceedings of the Royal Society A:   Mathematical, physical, and engineering sciences",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20201211-170108752",
    id = "record",
    issn = "1364-5021",
    doi = "10.1098/rspa.2003.1123",
    volume = "459"
}