[4] Werkdocument van de diensten van de Commissie “Detailed information on the implementation of Directive 2006/123/EC on services in the internal market”; Werkdocument van de diensten van de Commissie “Results of the performance checks of the internal market for services (construction, business services and tourism)”.
[4] Arbeitsunterlage der Kommissionsdienststellen „Detailed information on the implementation of Directive 2006/123/EC on services in the internal market”; Arbeitsunterlage der Kommissionsdienststellen „Results of the performance checks of the internal market for services (construction, business services and tourism)”.