AUTHOR=Pfurtscheller Gert , Allison Brendan Z., Bauernfeind Günther , Brunner Clemens , Solis Escalante Teodoro , Scherer Reinhold , Zander Thorsten O., Mueller-Putz Gernot , Neuper Christa , Birbaumer Niels TITLE=The hybrid BCI JOURNAL=Frontiers in Neuroscience VOLUME=4 YEAR=2010 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnpro.2010.00003 DOI=10.3389/fnpro.2010.00003 ISSN=1662-453X