@misc{indiciaed630008a4b7b,
  title = {Orion Cislunar Guidance and Navigation},
  author = {D'Souza, Christopher and Crain, Timothy and Clark, Fred C.},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20070025135},
  note = {Source identifier: 20070025135}
}