@misc{indiciaef775e8898543,
  title = {Viking lander camera radiometry calibration report, volume 1},
  author = {Wolf, M. R. and Atwood, D. L. and Morrill, M. E.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780008034},
  note = {Source identifier: 19780008034}
}