1. Faculty of Electrical Engineering, Computer Science and Information Technology, University of Osijek, 31000 Osijek, Croatia
2. Mechanical Engineering Faculty in Slavonski Brod, University of Slavonski Brod, 35000 Slavonski Brod, Croatia
3. Faculty of Management, Comenius University Bratislava, 81499 Bratislava, Slovakia
4. Faculty of Economics and Engineering Management, University Business Academy, 21000 Novi Sad, Serbia
5. Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia