@misc{indiciaeecc432e90833,
  title = {A field-portable, microprocessor-controlled, data processing and storing cardiotachometer.},
  author = {N K Jacobsen and J L Stuart},
  year = {1982},
  url = {https://pubmed.ncbi.nlm.nih.gov/7115906/},
  note = {Source identifier: 7115906}
}