@misc{indiciaee3f6db13ac5c,
  title = {Four-dimensional modulation and coding: An alternate to frequency-reuse},
  author = {Wilson, S. G. and Sleeper, H. A.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830028029},
  note = {Source identifier: 19830028029}
}