@misc{indiciae3eed730a0e84,
  title = {Space Flyable Hg(sup +) Frequency Standards},
  author = {Prestage, John D. and Maleki, Lute},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/20060037902},
  note = {Source identifier: 20060037902}
}