@misc{indiciae1d9003895919,
  title = {User's guide to the Mission Analysis Evaluation and Space Trajectory Operations program (MAESTRO)},
  author = {Lutzky, D. and Schafer, J.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740008426},
  note = {Source identifier: 19740008426}
}