We found Krisztiáns profile on research gate net: https://www.researchgate.net/profile/Krisztian-Hofstaedter After we made a google picture search of «Greentek gel free»: https://www.google.ch/search?lr=&as_qdr=all&sxsrf=AB5stBiIvAyfDY86ZKUOpzGNFsR4S9S6mA:1690447221124&q=greentek+gel+free&tbm=isch&source=lnms&sa=X&ved=2ahUKEwi0pYHRvq6AAxUSCuwKHXvUDcsQ0pQJegQIChAB&biw=1920&bih=927&dpr=1 https://www.google.ch/search?lr=&as_qdr=all&sxsrf=AB5stBhjikoqeY34fYZppsx0rUl-1Pv8GQ:1690447596165&q=meditation+research+institute+switzerland&tbm=isch&source=lnms&sa=X&ved=2ahUKEwj79OuDwK6AAxUuh_0HHQsTD4EQ0pQJegQIChAB&biw=1920&bih=927&dpr=1 Krisztián has 6 Publications with 639 Reads and 34 Citations. Developing Brain Computer Music interfaces for Meditation The «Journal of Meditation Research» of the Meditation Research Institute Switzerland (MRIS) has currently 2004 published …