@misc{indiciae1689ceb8a340,
  title = {Tracking and Data Relay Satellite System configuration and tradeoff study. Volume 2: Delta 2914 launched TDRSS, Configuration 2. Part 2: Final Report, 22 August 1972 - 1 April 1973},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730014073},
  note = {Source identifier: 19730014073}
}