@misc{indiciaed429259be92e,
  title = {Fixed-Position Isolation Valve},
  author = {Mckulla, Frank S. and Leonardi, Louis V. and Chun, Siu},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900000238},
  note = {Source identifier: 19900000238}
}