@other{https://resolver.caltech.edu/CaltechAUTHORS:20151124-101329882,
    title = "Cracks Faster Than the Shear Wave Speed",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20151124-101329882",
    id = "record",
    doi = "10.7907/fcw8-1577"
}


@other{https://resolver.caltech.edu/CaltechAUTHORS:20150309-093637326,
    title = "The Conversion of Plastic Work to Heat around a Dynamically Propagating Crack in Metals",
    year = "1992",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150309-093637326",
    id = "record",
    doi = "10.7907/f9vk-b551"
}