Author(s):
1. Nenad Miloradović, Fakultet inženjerskih nauka Univerziteta u Kragujevcu, Serbia
2. Slobodan Mitrović, Faculty of Engineering, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Srbija 2IMW Ins, Serbia
3. Blaža Stojanović, Faculty of Engineering, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Srbija 2IMW Ins, Serbia

Final paper