@misc{indiciae8fdad531b646,
  title = {STS users study (study 2.2). Volume 2: STS users plan (user data requirements) study},
  author = {Pritchard, E. I.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760023175},
  note = {Source identifier: 19760023175}
}