@misc{indiciae0d710e3fec8b,
  title = {Film advance indicator},
  author = {Freeman, E. T. and Stump, C. W. and Dreisbach, F. W.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820018752},
  note = {Source identifier: 19820018752}
}