@misc{1200426,
  author = {Karen Hansen Lichtfuss},
  title = {NIST time and frequency bulletin-December 2016:},
  year = {2016},
  month = {2016-12-01 05:12:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.8104-12},
  language = {en},
}