Dr. Franz Suchentrunk

Research Institute of Wildlife Ecology, University of Veterinary Medicine Vienna

Prof. Klaus Hackländer

University of Natural Resources and Life Sciences Vienna

Prof. Boštjan Pokorny

Fakulteta za varstvo okolja

Prof. Gancho Slavov

Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, UK

Prof. Diyan Georgiev, PhD

Prof. Diyan Georgiev, PhD

Prof. Stefan Gandev DSc

Fruit Growing Institute-Plovdiv

Prof. Vesselin Koutev DSc

University of Forestry, Sofia, Bulgaria

Prof. Miglena Zhianski

Forest Research Institute, BAS, Bulgaria

Prof. Krasimira Genova

University of Forestry, Sofia, Bulgaria

Prof. Petar Antov

University of Forestry, Sofia, Bulgaria