1. Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
2. Faculty of Forestry, University of Belgrade, Belgrade, Serbia
3. University of Zagreb Faculty of Forestry and Wood Technology Zagreb, Zagreb, Croatia
4. Faculty of Mechanical Engineering, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
5. Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN, USA
6. Department of Forestry and Renewable Forest Resources, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia