@misc{indiciaeeff66a1d7a76,
  title = {A simple and effective low cost frequency modulation system for neurophysiological recording.},
  author = {J Louvel},
  year = {1981},
  doi = {10.1016/0013-4694(81)90012-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/6161797/},
  note = {Source identifier: 6161797}
}