@misc{65701,
  author = {Richard Gann and William Guthrie},
  title = {Interlaboratory Study of Alternate Filter Papers for Use in ASTM E 2187},
  year = {2009},
  month = {2009-12-11},
  publisher = {Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904159},
  language = {en},
}