@article{845491,
  author = {Patrick Abbott and Justin Chow},
  title = {Anomalous Behavior of Teflon-Based Helium Permeation Flow Standards},
  year = {2007},
  month = {2007-06-01 00:06:00},
  publisher = {NCSL International Measure},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=830977},
  language = {en},
}