@misc{indiciaebb3b2e90eb84,
  title = {Satellite Time- and Frequency-Transfer System},
  author = {Vessot, R. F. C. and Penfield, H. and Mattison, E.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19850000169},
  note = {Source identifier: 19850000169}
}