@misc{indiciaeca6533e8233c,
  title = {A dual digital integrator for EEG studies.},
  author = {J W Emde and H W Shipton},
  year = {1974},
  doi = {10.1016/0013-4694(74)90013-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4135029/},
  note = {Source identifier: 4135029}
}