[5] CEBR: The impact of counterfeiting on four main sectors in the European Union, Centre for Economic and Business Research, Londen, 2000.
[5] CEBR, The impact of counterfeiting on four main sectors in the European Union (Die Folgen von Marken- und Produktpiraterie für vier Hauptsektoren in der Europäischen Union), Centre for Economic and Business Research, London 2000