@misc{indiciaec5ed8b1f9c73,
  title = {EEG coherence and reference signals: experimental results and mathematical explanations.},
  author = {M Essl and P Rappelsberger},
  year = {1998},
  doi = {10.1007/bf02523206},
  url = {https://pubmed.ncbi.nlm.nih.gov/10198521/},
  note = {Source identifier: 10198521}
}