@misc{64066,
  author = {Thomas Parker and Marc Weiss},
  title = {Atomic Time},
  year = {2002},
  number = {2},
  month = {2002-01-01},
  publisher = {McGraw-Hill Encyclopedia of Science and Technology},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105529},
  language = {en},
}