Author(s):
1. Branislav Šojić, University of Novi Sad, Faculty of Technology, Serbia, Serbia
2. Vladimir Tomović, University of Novi Sad, Faculty of Technology, Serbia, Serbia
3. Natalija Džinić, University of Novi Sad, Faculty of Technology, Serbia, Serbia
4. Jovo Savanović, MI ''DIM-DIM'' d.o.o., Laktaši, Bosnia and Herzegovina, Republic of Srpska, Bosnia and Herzegovina
5. Danica Savanović, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina

Abstract Final paper Paper for reviews