@misc{indiciae7787ea6e557b,
  title = {Quality control in air sampling pump calibration.},
  author = {H P Shotwell},
  year = {1979},
  doi = {10.1080/15298667991429561},
  url = {https://pubmed.ncbi.nlm.nih.gov/495465/},
  note = {Source identifier: 495465}
}