Opinion of Mr Advocate General Lenz delivered on 13 May 1987

1 Translated from the German.

2 Judgment of 9 December 1982 in Case 191/81 Onno Plug v Commission of the European Communities [1982] ECR 4229.

3 Judgment of 6 July 1971 in Case 59/70 Netherlands v Commission [1971] ECR 639.