1. Khmelnitsky National University,Department of Computer Engineering and Information Systems,Khmelnitsky,Ukraine
2. Silesian University of Technology,Gliwice,Poland
3. Khmelnitsky National University,Department of Computer Engineering and System Programming,Khmelnitsky,Ukraine
4. Kazimierz Pulaski University of Technology and Humanities in Radom,Department of Informatics and Teleinformatics,Radom,Poland