@misc{indiciae53b0a18b2cec,
  title = {Some rate 1/3 and 1/4 binary convolutional codes with an optimum distance profile},
  author = {Johannesson, R.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770046212},
  note = {Source identifier: 19770046212}
}