@misc{indiciaea964f22071e5,
  title = {"Virtual keyboard" controlled by spontaneous EEG activity.},
  author = {B Obermaier and G R Müller and G Pfurtscheller},
  year = {2003},
  doi = {10.1109/tnsre.2003.816866},
  url = {https://pubmed.ncbi.nlm.nih.gov/14960119/},
  note = {Source identifier: 14960119}
}