1. Department of Technical and Vocational Education, Faculty of Education, University of Ostrava, Ostrava, Fr. Sramka 3, 709 00 Ostrava, CZECH REPUBLIC
2. Department of Mathematics with Didactics, Faculty of Education, University of Ostrava, Ostrava, Fr. Sramka 3, 709 00 Ostrava, CZECH REPUBLIC
3. Physics, Mathematics and Techniques, University of Presov in Presov, 17. Novembra 3724/15, 08001 Presov, SLOVAKIA
4. Faculty of Natural Sciences of Matej Bel University in Banska Bystrica, Tajovskeho 40, 974 01 Banska Bystrica, SLOVAKIA
5. Department of Process Control, Tomas Bata University in Zlin, Faculty of Applied Informatics, Nad Stranemi 4511, 760 05 Zlin, CZECH REPUBLIC