Authors
Ryszard Beniak
Opole University of Technology, Faculty of Electrical Engineering, Automatic Control and Informatics ul. Prószkowska 76, 45-758, Opole, Poland
Arkadiusz Gardecki
Opole University of Technology, Faculty of Electrical Engineering, Automatic Control and Informatics ul. Prószkowska 76, 45-758, Opole, Poland