1. Department of Forestry and Wood Technology, Faculty of Technology, Linnaeus University, Georg Lückligs Plats 1, 351 95 Växjö, Sweden
2. College of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI 49931, USA
3. Department of Forest Biomaterials and Technology, Division of Wood Science and Technology, Swedish University of Agricultural Sciences, Vallvägen 9C, 750 07 Uppsala, Sweden