Author(s):
1. Vladan Mićić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
2. Sanja Jezdić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
3. Pero Dugić, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
4. Sabina Begić, Faculty of Technology, University of Tuzla, Federation of Bosnia and Herzegovina , Bosnia and Herzegovina

Abstract