@misc{indiciaec98895527203,
  title = {Determining the expiratory time constant.},
  author = {G Pötzl and G Swoboda},
  year = {1996},
  doi = {10.1097/00003246-199604000-00031},
  url = {https://pubmed.ncbi.nlm.nih.gov/8612430/},
  note = {Source identifier: 8612430}
}