@misc{indiciae2d7d74a68b99,
  title = {Visual Earth observation performance in the space environment. Human performance measurement 4: Flight experiments},
  author = {Huth, John F. and Whiteley, James D. and Hawker, John E.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940007067},
  note = {Source identifier: 19940007067}
}