@misc{indiciae4b4c0b820ffa,
  title = {Advanced space system analysis software. Technical, user, and programmer guide},
  author = {Farrell, C. E. and Zimbelman, H. F.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820009382},
  note = {Source identifier: 19820009382}
}