@misc{indiciae4a521d7ceb37,
  title = {On the inherent intractability of certain coding problems},
  author = {Berlekamp, E. R. and Mceliece, R. J. and Van Tilborg, H. C. A.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780054314},
  note = {Source identifier: 19780054314}
}