1. University of Natural Resources and Life Sciences, Vienna, Department of Forest and Soil Sciences, Institute of Forest Engineering, Vienna, Austria
2. CNR-IBE Consiglio Nazionale delle Ricerche - Istituto per la BioEconomia, Sesto Fiorentino (FI), Italy
3. University of the Sunshine Coast, Forest Industries Research Centre (FIRC), Maroochydore, Australia
4. Skogforsk, Department of Forest Operations, Uppsala Science Park, Uppsala, Sweden