@conference{179881,
  author = {Thomas Heavner and Steven Jefferts},
  title = {The Realization of the SI Second and Generation of UTC(NIST) at the Time and Frequency Division of the National Institute of Standards and Technology (NIST)},
  year = {2007},
  month = {2007-08-02},
  publisher = {Proc. 2007 NCSLI Conf.},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50533},
  language = {en},
}