@misc{179886,
  author = {Eyvon Petty},
  title = {NIST Time and Frequency Bulletin},
  year = {2008},
  month = {2008-01-08},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50658},
  language = {en},
}