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