@misc{indiciae3a6abf2ad3a0,
  title = {Autonomous planetary landing guidance by optical correlation},
  author = {Knopp, Jerome and Juday, Richard D. and Monroe, Stanley E., Jr.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930043938},
  note = {Source identifier: 19930043938}
}