1. European Forest Institute (EFI), Joensuu, Finland
2. Swedish University of Agricultural Sciences (SLU), Sweden
3. University of Natural Resources and Life Sciences (BOKU), Wien, Austria
4. Institute of Forest Ecosystem Research (IFER), Jilove u Prahy, Czech Republic
5. BTG Biomass Technology Group (BTG), Enschede, Netherlands
6. National Research Council of Italy (IVALSA), Sesto Fiorentino, Italy
7. FELIS, Albert-Ludwigs-Universität Freiburg, Freiburg; Germany
8. Natural Resources Institute Finland (Luke), Joensuu, Finland