@misc{indiciae48e52c1b41bb,
  title = {THE ATOMIC CLOCK AS A PHASE-STABLE OSCILLATOR FOR DEEP SPACE COMMUNICATIONS},
  author = {Malling, L. R.},
  year = {1961},
  url = {https://ntrs.nasa.gov/citations/19630041256},
  note = {Source identifier: 19630041256}
}