@misc{80881,
  author = {Douglas Olson},
  title = {NIST Special Publication 250-39 2009 NIST Calibration Services for Pressure Using Piston Gauge Standards},
  year = {2009},
  month = {2009-07-01},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902889},
  language = {en},
}