@misc{indiciae6ae3cf5c9ead,
  title = {Digital tachometer.},
  author = {A Strzalkowski},
  year = {1979},
  doi = {10.1007/bf02447073},
  url = {https://pubmed.ncbi.nlm.nih.gov/316067/},
  note = {Source identifier: 316067}
}