Author(s):
1. Zoran Govedar, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Milun Krstić, Serbia
3. Srđan Keren, Faculty of Forestry, University of Agriculture, Krakow, Poland, Poland
4. Velibor Blagojević, PFE Forests of Republic of Srpska; RDPC, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
5. Milan Stojanović, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
6. Vasilije Trifković, Biotechnical Faculty, University of Ljubljana, Slovenia