@misc{indiciae81a2f3fc27fb,
  title = {Manning an earth-resources survey system in orbit},
  author = {Fischetti, T. L. and Lind, D. L. and Smith, O. G.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710050762},
  note = {Source identifier: 19710050762}
}