@misc{indiciae3126f7cc84eb,
  title = {Research and development program on the use of counting techniques},
  author = {Roehrig, J. R. and Torney, F. L., Jr.,},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710008557},
  note = {Source identifier: 19710008557}
}