@misc{indiciaeed5483be890a,
  title = {Theoretical and Practical Resolution Limits for Processing Pulse Frequency Modulation Telemetry},
  author = {Heffner, P. and Karras, T. J.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680008778},
  note = {Source identifier: 19680008778}
}