@misc{indiciae5616870b3872,
  title = {Detecting gas leaks in propellant lines},
  author = {Escue, W. T. and Feagley, H. K. and Sokolowski, T. I.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770000215},
  note = {Source identifier: 19770000215}
}