3. https://shop.openbci.com/products/cyton-biosensing-board-8-channel?variant=38958638542
4. https://openbci.com/community/openbci-gui-v3-out-now/
5. http://openvibe.inria.fr/openvibe-p300-speller/
6. https://shop.openbci.com/products/5-mm-spike-electrode-pack-of-30?variant=8120433606670
7. http://jacobsschool.ucsd.edu/faculty/faculty_bios/findprofile.sfe?department=BENG&fmp_recid=398