1. B. Cornils and P.Lappe, in Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release, Wiley-VCH, Weinheim, Germany, 7th edn, 2010
2. http://www.matweb.com (September 30, 2013)
3. Saechtling Kunststoff Taschenbuch, ed. E. Baur, S. Brinkmann, T. A. Osswald and E. Schmachtenberg, Hanser, Munich, 2007
4. Plastics Additive Handbook, ed. H. Zweifel, Hanser, Munich, 2009