Author(s):
1. Božana Odžaković, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Slavica Grujić, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. Nina Todorović, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina

Final paper Paper for reviews Abstract