[1] Fraunhofer-Institut für Holzforschung, Wilhelm-Klauditz-Institut WKI, Braunschweig, Germany
[2] ETH Zürich, Institute for Building Materials, Zürich, Switzerland
[3] Luleå University of Technology, Wood Science and Engineering, Skellefteå, Sweden
[4] Department of Forestry and Biomaterials, Czech University of Life Sciences Prague, Prague, Czech Republic