@misc{indiciae37a02671581d,
  title = {Redundant Control for Air-Circulation Valves},
  author = {Johnson, R., Jr. and Trustee, B. and Fischer, W.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870000384},
  note = {Source identifier: 19870000384}
}