@misc{indiciae56b381aed9cd,
  title = {Force user's manual, revised},
  author = {Jordan, Harry F. and Benten, Muhammad S. and Arenstorf, Norbert S. and Ramanan, Aruna V.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870017087},
  note = {Source identifier: 19870017087}
}