@misc{indiciae863c03c2121b,
  title = {Architectural Design for a Mars Communications and Navigation Orbital Infrastructure},
  author = {Nelson, K. and Lyons, D. and Bell, D. and Hastrup, R. and Cesarone, R.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20210002985},
  note = {Source identifier: 20210002985}
}