TY - BOOK AU - Crawford, David J., ed. ED - Society of Photo-Optical Instrumentation Engineers Conference ED - Space Telescope Science Instiute TI - Instrumentation in astronomy: IV, SPIE conference proceedings held in Tucson, United States, 8-10 March 1982 T2 - SPIE proceedings series; v. 331 SN - 0-89252-366-2 PY - 1982/// CY - Washington PB - Society of Photo-Optical Instrumentation Engineers KW - Detector elements KW - Imaging detectors KW - Photoelectric astronomy KW - Spectroscopic instruments ER -