1. Brändli U-B (2010) Swiss National Forest Inventory. Results of the third survey 2004–2006. Editor, Birmensdorf, Eidgenössische Forschungsanstalt für Wald, Schnee und Landschaft WSL. Bern, Bundesamt für Umwelt, BAFU. ISBN 9783905621471
2. DIN 53804-1 (2002) Statistical evaluation—Part 1: continuous characteristics. DIN Deutsches Institut für Normung e. V, Berlin
3. DIN 55957 (2000) Binders for paints and varnishes: methylation and silylation of fatty acids and analysis by gas chromatography. DIN Deutsches Institut für Normung e. V, Berlin
4. EN 15425 (2008) Adhesives—One component polyurethane for load bearing timber structures—Classification and performance requirements. European Committee for Standardization (CEN), Brussels
5. EN 301 (2013a) Adhesives, phenolic and aminoplastic, for load-bearing timber structures: classification and performance requirements. European Committee for Standardization (CEN), Brussels