1. Department of Numerical Analysis, Faculty of Informatics, Eötvös Loránd University, Budapest, Hungary
2. Department of Automation and Electronics, Faculty of Engineering, University of Rijeka, Rijeka, Croatia
3. Nanosensors Laboratory, HUN-REN Centre for Energy Research, Budapest, Hungary
4. Physics Department, Lakehead University, Thunder Bay, ON, Canada
5. Systems and Control Laboratory, HUN-REN Institute for Computer Science and Control, Budapest, Hungary