Аутори:
1. Dane Marčeta, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Anđela Jokić, Polytechnic High School, Republic of Srpska, Bosnia and Herzegovina
3. Vladimir Petković, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
4. Gordana Globočki-Lakić, University of Banja Luka, Faculty of mechanical engineering, Republic of Srpska, Bosnia and Herzegovina

Финални рад