@misc{indiciae47a24fe9c9a5,
  title = {Satellite networks for education},
  author = {Singh, J. P. and Morgan, R. P. and Rosenbaum, F. J.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730003421},
  note = {Source identifier: 19730003421}
}