Author(s):
1. Branislav Cvjetković, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Milan Mataruga, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. Dalibor Ballian, Forestry Faculty, University of Sarajevo, Bosnia and Herzegovina, Federation of Bosnia and Herzegovina , Bosnia and Herzegovina
4. Vanja Daničić, Faculty of Forestry, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
5. Rifet Terzić, Faculty of Natural Sciences and Mathematics, University of Tuzla , Federation of Bosnia and Herzegovina , Bosnia and Herzegovina