@other{https://resolver.caltech.edu/CaltechTHESIS:01112013-110414331,
    title = "Atomic-scale imaging and spectroscopy using scanning tunneling microscopy",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechTHESIS:01112013-110414331",
    id = "record",
    doi = "10.7907/0d6k-be86"
}