Opinion of Mr Advocate General Cosmas delivered on 28 September 1995. # Catherine Schiltz-Thilmann v Ministre de l'Agriculture. # Reference for a preliminary ruling: Conseil d'Etat - Grand Duchy of Luxemburg. # Preliminary reference - Interpretation of Article 5c of Regulation (EEC) Nº 80/68 of the Council of 27 June 1968 on the common organization of the market in milk and milk products - Additional levy - Reference quantity - Exceeded. # Case C-196/94. TITJUR Schiltz-Thilmann