Author(s):
1. Dušan Ješić, International technology Management Academy, Novi Sad, 2. Pavel Kovač, Faculty of Technical Sciences, Department for Production Engineering, Serbia
3. Borislav Savković, Faculty of Technical Sciences, Department for Production Engineering, Serbia
4. Dražen Sarjanović, Sara-Mont. Doo,, Serbia
5. D Golubović, University of Banja Luka, Faculty of Engineering, , Republic of Srpska, Bosnia and Herzegovina