@misc{indiciae31a01c96950a,
  title = {[Planimetric determination of lung volume--a complement to spirometry].},
  author = {M Bieber and H J Maurer},
  year = {1984},
  doi = {10.1055/s-2008-1052982},
  url = {https://pubmed.ncbi.nlm.nih.gov/6423491/},
  note = {Source identifier: 6423491}
}