@misc{indiciaee6a7c3454d04,
  title = {Programmed-pressure air supply for positive-pressure breathing system},
  author = {Troutman, S. J., Jr. and Annis, J. F.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740000075},
  note = {Source identifier: 19740000075}
}