@misc{indiciae1ada35da356d,
  title = {The tracking and data relay satellite system - An historical perspective},
  author = {Elwell, Daniel W. and Levine, Allen J. and Harris, David W.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920047194},
  note = {Source identifier: 19920047194}
}