@misc{indiciae78a025082b1e,
  title = {[A computer program for the frequency analysis of phonocardiograms].},
  author = {J Dudeck and H von Egidy},
  year = {1967},
  url = {https://pubmed.ncbi.nlm.nih.gov/5594080/},
  note = {Source identifier: 5594080}
}