Author(s):
1. Borislav Malinović, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Tijana Đuričić, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. Natalija Bjelajac, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina

Abstract Final paper