@misc{indiciae2895cd2cdf71,
  title = {Permutation codes for the Laplacian source},
  author = {Townes, S. A. and Oneal, J. B., Jr.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19850028013},
  note = {Source identifier: 19850028013}
}