TY - BOOK AU - Douglas,Bruce C. AU - Goad,Clyde C. AU - Morrison,F.Foster ED - United States. TI - Determination of the geopotential from satellite-to-satellite tracking data U1 - 629.434 PY - 1980/// CY - Washington, D.C. PB - U.S. Government Printing Office KW - Artificial Satellite ER -