@misc{indiciaeac70ef217157,
  title = {GPS World, Innovation: Autonomous Navigation at High Earth Orbits},
  author = {Bamford, William and Winternitz, Luke and Hay, Curtis},
  year = {2005},
  url = {https://ntrs.nasa.gov/citations/20060012296},
  note = {Source identifier: 20060012296}
}