The Smithsonian Astrophysical Observatory Satellite Ranging Hardware Pearlman, M. R. ; Lanham, N. W. ; Wohn, J. ; Thorp, J. M. ; Imbier, E. ; Young, F. D. Abstract Publication: Laser Workshop, Third International Workshop on Laser Ranging Instrumentation Pub Date: 1978 Bibcode: 1978lase.work...82P