Author(s):
1. Branka Ružičić, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Mladen Stančić, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. Nemanja Kašiković, Fakultet tehničkih nauka Univerziteta u Novom Sadu, Serbia
4. Dragoljub Novaković, Fakultet tehničkih nauka Univerziteta u Novom Sadu, Serbia
5. Dragana Grujić, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
6. Rastko Milošević, Fakultet tehničkih nauka Univerziteta u Novom Sadu, Serbia