Author(s):
1. Draženko Bjelić, University of Banja Luka, Faculty of Technology, Republic of Srpska, Bosnia and Herzegovina
2. Jelena Jovanović, Tehnološki fakultet Univerziteta u Banjoj Luci::Vojvode Stepe Stepanovića 73, Republic of Srpska, Bosnia and Herzegovina
3. Tijana Đuričić, University of Banja Luka, Faculty of Technology, Republic of Srpska, Bosnia and Herzegovina
4. Borislav Malinović, University of Banja Luka, Faculty of Technology, Republic of Srpska, Bosnia and Herzegovina

Applied paper from author