Location of the valence-band maximum in bismuthS.H. KoenigA.A. Lopezet al.1968Physical Review LettersPaper
Electron-hole recombination in bismuth below 20°KA.A. LopezS.H. Koenig1966Solid State CommunicationsPaper
Low-temperature dependence of the electrical resistivity of degenerate n-type germaniumM.J. KatzS.H. Koeniget al.1965Physical Review LettersPaper