TY - JOUR AU - Richard Silver AU - John Dagata AU - H. Tseng C2 - Journal of Applied Physics DA - 1994-11-01 00:11:00 LA - en M1 - 76 PB - Journal of Applied Physics PY - 1994 TI - Ambient and Vacuum Scanning Tunneling Spectroscopy of Sulfur and Oxygen-Terminated Gallium Arsenide ER -