@misc{indiciae2579669837bb,
  title = {New approaches for tracking earth orbiters using modified GPS ground receivers},
  author = {Lichten, S. M. and Young, L. E. and Nandi, S. and Haines, B. J. and Dunn, C. E. and Edwards, C. D.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940018785},
  note = {Source identifier: 19940018785}
}