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2. Boonstra MJ, Tjeerdsma BF (2006) Chemical analysis of heat treated softwoods. Holz Roh- Werkst 64:204–211
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4. European Committee for Standardization (CEN), EN 310 (1993) Wood based panels – Determination of modulus of elasticity in bending strength
5. European Committee for Standardization (CEN), EN 317 (1993) Particleboards and fiberboards – Determination of swelling in thickness after immersion in water