@misc{37391,
  author = {William Walton and Jay McElroy and W Twilley and R. Hiltabrand},
  title = {Smoke Measurements Using a Helicopter Transported Sampling Package (NIST SP 995)},
  year = {2003},
  number = {2},
  month = {2003-03-01},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=911184},
  language = {en},
}