1. ASTM D 143–83 (1992) Small clear specimens of timber. Standard method of testing
2. Bekhta P, Niemz P (2003) Effect of high temperature on the change in color, dimensional stability and mechanical properties of Spruce wood. Holzforschung 57:539–546
3. ÖNORM B 3012 3012 (1998) Wood species. Characteristics values to terms and symbols of ÖNORM EN 13556 (Holzarten. Kennwerte zu den Benennungen und Kurzzeichen der ÖNORM EN 13556)
4. DIN 52186 (1978) Testing of wood; bending test (Biegeversuch)
5. DIN 52189 (1981) Testing of wood; determination of impact bending strength (Schlagbiegeversuch; Bestimmung der Bruchschlagarbeit)