@misc{indiciae0426e5b1d56c,
  title = {Small Mercury Ion Clock for On-board Spacecraft Navigation},
  author = {Prestage, John D. and Chung, Sang and Le, Thanh and Hamell, R. and Maleki, Lute and Tjoelker, Robert},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20060014044},
  note = {Source identifier: 20060014044}
}