1. Department of Software Development and Application, Institute of Computer Engineering, University of Dunaujvaros, Dunaujvaros, Hungary
2. Department of Instrumentation and Automation, Institute of Electronics and Communication Systems, Kandó Kálmán Faculty of Electrical Engineering, Obuda University, Budapest, Hungary
3. Department of Informatics, GAMF Faculty of Engineering and Computer Science, Kecskemét, Hungary