@other{https://resolver.caltech.edu/CaltechETD:etd-12022003-155839, title = "I. Ultrasensitive surface NMR using parahydrogen spin labeling. II. High-resolution optical NMR of semiconductor heterostructures using larmor beat detection", url = "https://resolver.caltech.edu/CaltechETD:etd-12022003-155839", id = "record", doi = "10.7907/8382-QF81" }