TY - RPRT TI - Program for Optimization of Two-impulse Transfers by Contouring and Steep Descent AU - Bender, D. F. AU - Mc Cue, G. A. AU - Morford, J. M. PY - 1969 UR - https://ntrs.nasa.gov/citations/19690015850 ID - 19690015850 ER -