@misc{indiciae28982ed882a9,
  title = {[Sequential numerator for graphic and magnetic recorders].},
  author = {J Pernier and P Gerin and G Marnas},
  year = {1975},
  doi = {10.1007/bf02477742},
  url = {https://pubmed.ncbi.nlm.nih.gov/1195822/},
  note = {Source identifier: 1195822}
}