@misc{indiciaed595f673cf03,
  title = {Trellis coding with asymmetric modulations},
  author = {Divsalar, Dariush and Simon, Marvin K. and Yuen, Joseph H.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870043043},
  note = {Source identifier: 19870043043}
}