@misc{indiciae62ac45a2d6d0,
  title = {Combinatorial FSK modulation for power-efficient high-rate communications},
  author = {Wagner, Paul K. and Budinger, James M. and Vanderaar, Mark J.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910020090},
  note = {Source identifier: 19910020090}
}