@misc{indiciae9f45f0186f23,
  title = {Improved Timekeeping Using Advanced Trapped Ion Clocks},
  author = {Tjoelker, R. and Prestage, J. and Maleki, L.},
  year = {2000},
  url = {https://ntrs.nasa.gov/citations/20060032614},
  note = {Source identifier: 20060032614}
}