@misc{indiciaec21efa395352,
  title = {AUTOPLAN: A PC-based automated mission planning tool},
  author = {Paterra, Frank C. and Allen, Marc S. and Lawrence, George F.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19890000696},
  note = {Source identifier: 19890000696}
}