@article{https://resolver.caltech.edu/CaltechAUTHORS:20220506-239689300,
    title = "Pulse Propagation in Two Spatial Dimensions",
    journal = "Geophysics",
    year = "1950",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20220506-239689300",
    id = "record",
    issn = "0016-8033",
    doi = "10.1190/1.1437609",
    volume = "15"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:20220325-215659492,
    title = "On the minimum oscillatory character of spherical seismic pulses",
    journal = "Geophysics",
    year = "1949",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20220325-215659492",
    id = "record",
    issn = "0016-8033",
    doi = "10.1190/1.1437452",
    volume = "14"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:20220418-736817300,
    title = "Microcards, A New Method Of Publication",
    journal = "Geophysics",
    year = "1949",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20220418-736817300",
    id = "record",
    issn = "0016-8033",
    doi = "10.1190/1.1437461",
    volume = "14"
}