1. Faculty of Sport and Physical Education, University of Nis, 18000 Nis, Serbia
2. Faculty for Sports and Physical Education, University of Montenegro, 81400 Niksic, Montenegro
3. Faculty of Sport and Physical Education, University of Novi Sad, 21000 Novi Sad, Serbia
4. Faculty of Sports and Physical Education, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina