@misc{indiciaebc9354ee4eec,
  title = {Passive biotelemetry by frequency keying.},
  author = {B C Towe},
  year = {1986},
  doi = {10.1109/tbme.1986.325660},
  url = {https://pubmed.ncbi.nlm.nih.gov/3770778/},
  note = {Source identifier: 3770778}
}