TY - RPRT TI - Gravity model development for precise orbit computations for satellite altimetry AU - Marsh, James G. AU - Lerch, Francis, J. AU - Smith, David E. AU - Klosko, Steven M. AU - Pavlis, Erricos PY - 1986 UR - https://ntrs.nasa.gov/citations/19870058541 ID - 19870058541 ER -