@misc{indiciae130b89683394,
  title = {A zero-setter and voltage reference unit for EEG amplifier systems.},
  author = {L Macpherson and B S Kopell},
  year = {1972},
  doi = {10.1111/j.1469-8986.1972.tb00761.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5024168/},
  note = {Source identifier: 5024168}
}