Judgment of the Court (Grand Chamber) of 7 September 2004 in Case C-127/02 (reference for a preliminary ruling from the Raad van State): Landelijke Vereniging tot Behoud van de Waddenzee, Nederlandse Vereniging tot Bescherming van Vogels v Staatssecretaris van Landbouw, Natuurbeheer en Visserij (Directive 92/43/EEC — Conservation of natural habitats and of wild flora and fauna — Concept of ‘plan’ or ‘project’ — Assessment of the implications of certain plans or projects for the protected site)