@misc{indiciaeeca2113d5ea0,
  title = {CAFS: A Cesium Atomic Frequency Standard for GPS block IIR},
  author = {Wisnia, Jeffry A.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940006508},
  note = {Source identifier: 19940006508}
}