Ivan Virgala
Department of applied mechanics and mechatronics, Technical University of Košice / Faculty of mechanical engineering, Košice, Slovakia
František Šimčák
Department of applied mechanics and mechatronics, Technical University of Košice / Faculty of mechanical engineering, Košice, Slovakia
Zdenko Bobovský
Department of Robotics, Technical University of Ostrava / Faculty of mechanical engineering, Ostrava, Czech Republic