Author(s):
1. Predrag Mrdja, Mašinski fakultet Univerziteta u Beogradu, Serbia
2. Vladimir Petrović, Univeristy of Belgrade, Faculty of Mechanical Engineering, Serbia
3. Nenad Miljić, Univeristy of Belgrade, Faculty of Mechanical Engineering, Serbia
4. Slobodan Popovic, Univeristy of Belgrade, Faculty of Mechanical Engineering, Serbia
5. Marko Kitanović, Univeristy of Belgrade, Faculty of Mechanical Engineering, Serbia