@misc{indiciae2565f159ab2b,
  title = {The ATS-F/Nimbus-E tracking and data relay experiment},
  author = {Heffernan, P. J. and Pickard, R. H.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710005122},
  note = {Source identifier: 19710005122}
}