Court of Justice 23 October 1997, C-5/97 (Ballast Nedam Groep NV v Belgische Staat.)

OPINION OF ADVOCATE GENERAL LA PERGOLA delivered on 23 October 1997 ( *1 ) I — Introduction 1. In this reference for a preliminary ruling the Raad van State (Council of State), Belgium, is asking the Court to define the scope of one of its earlier judgments ( 1 ) in which it interpreted Directives 71/304/EEC ( 2 ) and 71/305/EEC, ( 3 ) adjudging that holding companies may be registered on lists