@other{https://resolver.caltech.edu/CaltechETD:etd-12042006-080059,
    title = "I. A Chemical Application of Electron-Nuclear Double Resonance. II. Auxiliary Equipment",
    year = "1963",
    url = "https://resolver.caltech.edu/CaltechETD:etd-12042006-080059",
    id = "record",
    doi = "10.7907/9S5C-NB53"
}