1. Department of Forest Utilization and Timber Markets, Eberswalde University for Sustainable Development, 16225 Eberswalde, Germany
2. Department of Socioeconomics and Communication, Eberswalde University for Sustainable Development, 16225 Eberswalde, Germany
3. State Enterprise for Forestry and Timber, North Rhine-Westphalia, Forest Education Center, 59755 Arnsberg, Germany
4. Bauhaus Erde gGmbH, 12161 Berlin, Germany
5. Habitat Unit, Institute for Architecture, Technische Universität Berlin, 10623 Berlin, Germany