@misc{indiciaeb04efa549e13,
  title = {Direct-current potentials in the human brain evoked during timed cognitive performance.},
  author = {M W Donald},
  year = {1970},
  doi = {10.1038/2271057a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5449774/},
  note = {Source identifier: 5449774}
}