@misc{1200421,
  author = {Kathryn R Stephenson},
  title = {NIST time and frequency bulletin: March 2017:},
  year = {2017},
  month = {2017-03-01 05:03:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.8167-03},
  language = {en},
}