Аутори:
1. Mladen Stančić, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
2. Dragana Grujić, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
3. Бранка Ружичић, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina