of Sopron, Sopron Italy Department for Innovation in Biological, Agro-food and Forest systems, University of Tuscia Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Torino Faculty of Agriculture, University of Ancona Faculty of Agriculture, University of Basilicata Faculty of Agriculture, University of Florence Faculty of Agriculture, University of Molise Faculty of Agriculture, University of Padua Faculty of Agriculture, University of Palermo Faculty of Agriculture, University of Reggio Calabria Faculty of Agriculture, University of Sassari Faculty of Agriculture and Forestry industry University of Milan Latvia Forest Faculty, Latvia University of Life Sciences and Technologies Lithuania Faculty of Forestry, Lithuanian University of Agriculture Faculty of Forestry and Landscape Planning, Kaunas College of Forestry and Environmental Engineering The Netherlands Forest Ecology and Forest Management Group, Department of Environmental Sciences, Wageningen University Tropical Forestry, Department of Environmental Science, Van Hall Larenstein University, Velp North Macedonia Faculty of Forestry, Ss. Cyril and Methodius University of Skopje Norway Faculty of Applied Ecology and Agricultural Sciences, Inland Norway University of Applied Sciences Faculty of Society and Nature, Nord-Trøndelag University College Norwegian University College for Agriculture and Rural Development Department of Ecology and Natural Resources, Norwegian University of Life Sciences Pulp and Paper Technology Group, Norwegian University of Science and Technology Poland Faculty of Forestry, Agricultural University of Cracow, Kraków Faculty of Forestry Bialystok Technical University University of Life Sciences in Poznań Faculty of Forestry Faculty of Wood Technology Faculty of Forestry, University of Warmia and Mazury in Olsztyn, Olsztyn Warsaw University of Life Science Faculty of Forestry Faculty of Wood Technology Portugal Department of Forestry, Agrarian School of the Polythecnic Institute of Coimbra Department of Forestry, University of Évora Forestry Department, Higher Institute of Agronomy of the University of Lisbon Forestry Department, University of Trás-os-Montes and Alto Douro Wood Engineering Department, School of Technology and Management of the Polytechnic Institute of Viseu Romania Colegiul Silvic Theodor Pietraru, highschool in Branesti, județul Ilfov Department of Forestry and Agritourism, Faculty of Natural Sciences, Engineering and Information Science, Vasile Goldiş Western University, Arad Department of Silviculture, Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca Faculty of Silviculture, Ştefan cel Mare University, Suceava Transylvania University, Brașov Faculty of Silviculture and Forest Operations Faculty of Wood Industry Departament of Silviculture, Faculty of Agriculture, University of Agronomic Sciences and Veterinary Medicine of Bucharest USAMV Bucharest http://www.agro-bucuresti.ro/english/ Russia Faculty of Forestry, Arkhangelsk State Technical University Forest Faculty, Moscow State Forest