@other{https://resolver.caltech.edu/CaltechTHESIS:11292012-090633873, title = "Scanning tunneling microscopy and spectroscopy : I. Semimetals and semiconductors. II. Atom-resolved imaging of DNA", year = "1993", url = "https://resolver.caltech.edu/CaltechTHESIS:11292012-090633873", id = "record", doi = "10.7907/fp55-ng98" }