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. Dušan Golubović, University of East Sarajevo, Faculty for Mechanical Engineering East Sarajevo, Republic of Srpska, Bosnia and Herzegovina