Author(s):
1. Dragan Čomić, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Zoran Govedar, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. Vojislav Dukić, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
4. Ratko Čomić, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
5. Branko Glavonjić, University of Belgrade-Faculty of Forestry, , Serbia
6. Branislav Cvjetković, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
7. Vladimir Petković, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina