@misc{indiciae5300bd6728c9,
  title = {Pulse-conducted triangular exercise-ECG test. A feed-back system regulating work during exercise.},
  author = {M Arstila},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4505213/},
  note = {Source identifier: 4505213}
}