@misc{indiciae165bbf733490,
  title = {A modified impinger for personal sampling.},
  author = {W A Heitbrink and L J Doemeny},
  year = {1979},
  doi = {10.1080/15298667991429697},
  url = {https://pubmed.ncbi.nlm.nih.gov/463746/},
  note = {Source identifier: 463746}
}