@misc{indiciae98c9629f820c,
  title = {A high-performance Hg(+) trapped ion frequency standard},
  author = {Prestage, J. D. and Tjoelker, R. L. and Dick, G. J. and Maleki, L.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920015060},
  note = {Source identifier: 19920015060}
}