1. Swiss Federal Institute for Forest, Snow and Landscape Research WSL; Birmensdorf Switzerland
2. Chair of Silviculture; Albert-Ludwigs-Universität Freiburg; Freiburg Germany
3. Abteilung Waldbau und Waldökologie der gemäßigten Zonen; Georg-August-Universität Göttingen; Göttingen Germany
4. Laboratoire d'Etude des Ressources Forêt Bois (LERFoB); INRA Centre of Nancy; Champenoux France
5. Department of Silviculture; Warsaw University of Life Sciences; Warszawa Poland
6. Department of Silviculture and Forest Management; INIA; Forest Research Centre INIA-CIFOR Forest Research Centre; Madrid Spain
7. Sustainable Forest Management Research Institute University of Valladolid & INIA; Madrid Spain
8. Department of Agriculture and Forest Engineering - Forest Sciences Centre of Catalonia (CTFC); University of Lleida; Lleida Spain
9. Southern Swedish Forest Research Centre; Swedish University of Agricultural Sciences; Alnarp Sweden
10. Chair for Forest Growth and Yield Science; Technische Universität München; München Germany
11. Department of Silviculture; Mendel University; Brno Czech Republic
12. Forest Ecology and Forest Management Group; Wageningen University & Research; Wageningen The Netherlands
13. Department of Silviculture; Institute of Forest Ecology and Silviculture; University of Agriculture; Krakow Poland
14. Centro de Investigação e de Tecnologias Agro-Ambientais e Biológicas; CITAB; Universidade de Trás-os-Montes e Alto Douro, UTAD; Vila Real Portugal
15. Faculty of Bioscience Engineering & Earth and Life Institute; Universite Catholique de Louvain; Louvain-la-Neuve Belgium
16. Department of Forest and Soil Sciences; BOKU University of Natural Resources and Life Sciences; Vienna Austria
17. Faculty of Forestry and Wood Sciences; Czech University of Life Sciences; Prague Czech Republic
18. Department of Silviculture; Forest Research Institute; Sofia Bulgaria