Assoc. Prof. Kalin Hristov

University of Forestry, Sofia, Bulgaria

Assoc. Prof. Toma Tonchev

University of Forestry, Sofia, Bulgaria

Assoc. Prof. Simeon Bogdanov

University of Forestry, Sofia, Bulgaria

Assoc. Prof. Evgeni Tsavkov

University of Forestry, Sofia, Bulgaria

Assoc. Prof. Georgi Kostov

University of Forestry, Sofia, Bulgaria

Assoc. Prof. Momchil Panayotov

University of Forestry, Sofia, Bulgaria

Assoc. Prof. Stoyan Stoyanov

University of Forestry, Sofia, Bulgaria

Prof. Stanimir Stoilov

University of Forestry, Sofia, Bulgaria

Prof. Dr hab. Piotr S. Mederski

Poznan University of Life Sciences

Dr. Michaela Teich

BFW Austria