Pei X-M, Leuthardt EC, Gaona CM, Brunner P, Wolpaw J, Schalk G. Spatiotemporal dynamics of electrocorticographic high gamma activity during overt and covert word repetition. Neuroimage [Internet]. 2011;54(4):2960-72. http://www.ncbi.nlm.nih.gov/pubmed/21029784

Schalk G, Brunner P, Gerhardt LA, Bischof H, Wolpaw J. Brain-computer interfaces (BCIs): Detection Instead of Classification. J Neurosci Methods [Internet]. 2008;167(1):51-62. http://www.ncbi.nlm.nih.gov/pubmed/17920134

Schalk G, Carp JS, Wolpaw J. Temporal transformation of multiunit activity improves identification of single motor units. J Neurosci Methods [Internet]. 2002;114(1):87-98. http://www.ncbi.nlm.nih.gov/pubmed/11850043

Wolpaw J, Birbaumer N, Heetderks WJ, McFarland DJ, Peckham PH, Schalk G, et al.. Brain-computer interface technology: a review of the first international meeting. IEEE Trans Rehabil Eng [Internet]. 2000;8(2):164-73. http://www.ncbi.nlm.nih.gov/pubmed/10896178