1 | Faculty of Electronics and Computer Science, Koszalin University of Technology, ul. Śniadeckich 2, 75-453 Koszalin, Poland |
2 | Department of Information Systems, Kielce University of Technology, Al. 1000-lecia Państwa Polskiego, 25-314 Kielce, Poland |
3 | Department of Materials and Production, Aalborg University, Fibigerstræde 16, 9220 Aalborg, Denmark |