1. Department of Wood-Based Composites, Cellulose and Paper, Ukrainian National Forestry University, 790 57 Lviv, Ukraine
2. Department of Wood Science and Technology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, 613 00 Brno, Czech Republic
3. Department of Furniture and Wood Products, Technical University in Zvolen, T.G. Masaryka 24, 960 01 Zvolen, Slovakia