@misc{indiciae31883409c68e,
  title = {Relay communications strategies for Mars exploration through 2020},
  author = {Edwards, Charles D., Jr. and Arnold, B. and DePaula, R. and Kazz, G. and Lee, C. and Noreen, G.},
  year = {2005},
  url = {https://ntrs.nasa.gov/citations/20060044318},
  note = {Source identifier: 20060044318}
}