@misc{indiciae4b4b060e6eac,
  title = {An Easy-to-implement Coding Scheme for Multifrequency PPM},
  author = {Mceliece, R. J. and Swanson, L.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19840017828},
  note = {Source identifier: 19840017828}
}