Author(s):
1. Vladimir Stupar, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Đorđije Milanović, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. Jugoslav Brujić, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
4. Marijana Kapovic Solomun, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
5. Zorana Hrkić Ilić, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
6. Ozren Žolja, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
7. Nikola Pećanac, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
8. Ognjen Lukić, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina