@misc{34166,
  author = {William Pitts},
  title = {Species Concentration Measurements (NISTIR 5766)},
  year = {1995},
  month = {1995-11-01},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.5766},
  language = {en},
}