@misc{indiciae0c7dc75f7b0a,
  title = {Program for Optimization of Two-impulse Transfers by Contouring and Steep Descent},
  author = {Bender, D. F. and Mc Cue, G. A. and Morford, J. M.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690015850},
  note = {Source identifier: 19690015850}
}