@other{https://resolver.caltech.edu/CaltechETD:etd-10102006-093346, title = "Theoretical Studies of the Nonlinear Infrared Properties of p-Type Semiconductors", year = "1981", url = "https://resolver.caltech.edu/CaltechETD:etd-10102006-093346", id = "record", doi = "10.7907/e2ha-tt71" } @other{https://resolver.caltech.edu/CaltechTHESIS:07182014-141717487, title = "Optical properties of excited silicon and germanium at low temperatures ", year = "1979", url = "https://resolver.caltech.edu/CaltechTHESIS:07182014-141717487", id = "record", doi = "10.7907/8gcb-7j35" } @other{https://resolver.caltech.edu/CaltechTHESIS:07172014-143816928, title = "Luminescence properties of electron-hole-droplets in pure and doped germanium", year = "1977", url = "https://resolver.caltech.edu/CaltechTHESIS:07172014-143816928", id = "record", doi = "10.7907/9WCK-2W46" }