@other{https://resolver.caltech.edu/CaltechTHESIS:12112012-105738934,
    title = "Studies on Seismic Waves",
    year = "1944",
    url = "https://resolver.caltech.edu/CaltechTHESIS:12112012-105738934",
    id = "record",
    doi = "10.7907/G5RB-TK72"
}