@misc{1158856,
  author = {Robert M Graham and Jeff C Gust},
  title = {NIST recommended practice guide ::stopwatch and timer calibrations (2004 edition)/},
  year = {2004},
  month = {2004-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.960-12e1},
  language = {en},
}