1. Department of Environmental Engineering, Faculty of Engineering and Information Technology, University of Pécs, Boszorkány u. 2, H-7624 Pécs, Hungary
2. Department of Electrical Engineering, Faculty of Engineering and Information Technology, University of Pécs, Boszorkány u. 2, H-7624 Pécs, Hungary
3. College of Applied Sciences, Subotica Tech, Marka Oreškoviċa 16, 24000 Subotica, Serbia
4. Karotázs Ltd, Kővirág u. 39, H-7624 Pécs, Hungary
5. Institute of Information Technology, University of Dunaujvaros, Táncsics M. u. 1/A, H-2401 Dunaújváros, Hungary