@misc{indiciaeb5ae03c99bd5,
  title = {Mars approach navigation using Mars network based doppler tracking},
  author = {Ely, T. A. and Guinn, J. and Bhaskaran, S.},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20060031227},
  note = {Source identifier: 20060031227}
}