@misc{indiciaebbec98eb9f28,
  title = {Circuit arrangement to keep a stimulating current constant.},
  author = {R Pfurtscheller},
  year = {1969},
  doi = {10.1007/bf02474185},
  url = {https://pubmed.ncbi.nlm.nih.gov/5802214/},
  note = {Source identifier: 5802214}
}