@misc{832241,
  author = {Jeff Gust and R Graham and Michael Lombardi},
  title = {Stopwatch and Timer Calibrations},
  year = {2004},
  month = {2004-01-01 00:01:00},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105239},
  language = {en},
}