@misc{indiciae392021a12910,
  title = {The NASA Spacecraft Transponding Modem},
  author = {Perret, J. and Kayalar, S. and Berner, J.},
  year = {2000},
  url = {https://ntrs.nasa.gov/citations/20210001075},
  note = {Source identifier: 20210001075}
}