@misc{indiciaeb7d39c35f860,
  title = {Tracking and data acquisition system for the 1990's. Volume 8: TDAS frequency planning},
  author = {Heppe, S. B. and Elrod, B. D.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19840011308},
  note = {Source identifier: 19840011308}
}