@misc{indiciae375ad98d5eec,
  title = {An E.C.G. galvanometer used as a shutter.},
  author = {H B Morton and M E Wilson},
  year = {1966},
  doi = {10.1080/14640746608400043},
  url = {https://pubmed.ncbi.nlm.nih.gov/5947485/},
  note = {Source identifier: 5947485}
}