@misc{indiciae7639a9b0f0c6,
  title = {Flow-Control Unit For Nitrogen And Hydrogen Gases},
  author = {Chang, B. J. and Novak, D. W.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900000414},
  note = {Source identifier: 19900000414}
}