Author(s):
1. Ljiljana Topalić-Trivunović, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Aleksandar Savić, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. Jelena Kovačević, Krajina Klas d.o.o. Banja Luka, Republic of Srpska, Bosnia and Herzegovina

Abstract Final paper Paper for reviews