Opinion of Mr Advocate General Darmon delivered on 6 March 1990

1 Original language: French.

2 Judgment in Case 115/78 Knoors v Secretary for State for Economic Affairs [1979 ] ECR 399, paragraph 24

3 Case 221/85 [1987] ECR 719, paragraph 10.

4 Case 204/87 [1988] ECR 2029, paragraph 12.