@other{https://resolver.caltech.edu/CaltechTHESIS:10092014-085716916,
    title = "Observations of nitrogen and oxygen isotopes in the low energy cosmic rays",
    url = "https://resolver.caltech.edu/CaltechTHESIS:10092014-085716916",
    id = "record",
    doi = "10.7907/Y2TW-4412"
}