1. Proceedings of the 11th congress on polymers in concrete;Maultzsch,2004
2. Réalités économiques des polymères dans la construction;de Longcamp,2002
3. Commission of European Community DG XI. Financial costs of plastics marking. Final report, August 1999. Available from: http://europa.eu.int/comm/enterprise/construction/index.htm.
4. Plastics Europe. An analysis of plastics consumption and recovery in Europe 2002&2003, 2004.
5. Environmental and health aspects in the European construction products directive;Argüelles,2002