@misc{indiciaef9c5b8c9c15f,
  title = {Sensor requirements and comparisons for Martian photographic missions},
  author = {Kennedy, S. and Seyka, D. and Waltzer, J.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700037547},
  note = {Source identifier: 19700037547}
}