Czech University of Life Sciences Prague
Department of Environmental Biology, Sapienza, University of Rome (Italy)
Brasov University, Faculty of Silviculture and Forest Engineering, Romania
University of Freiburg, Germany
West University of Timkisoara, Romania
Universidad Politécnica de Madrid
Czech University of Life Sciences Prague
University of Ljubljana, Slovenia
Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Swiss Federal Institute for Forest, Snow and Landscape Research WSL
