@misc{indiciaeafc7caa7e5b7,
  title = {Special Semaphore Scheme for UHF Spacecraft Communications},
  author = {Butman, Stanley and Satorius, Edgar and Ilott, Peter},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20110013622},
  note = {Source identifier: 20110013622}
}