@misc{indiciae5cb686db9213,
  title = {Manned geosynchronous mission requirements and systems analysis study add-on},
  author = {Sherman, S. W. and Johnson, W. T. and Schoen, W. C.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19830001822},
  note = {Source identifier: 19830001822}
}