1. Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093 Zürich, Switzerland.
2. WoodTec Group, Cellulose & Wood Materials, EMPA, 8600 Dübendorf, Switzerland.
3. Institute for Biomechanics, Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland.
4. Laboratory for Cellulose & Wood Materials, EMPA, 9014 St. Gallen, Switzerland.