TITJUR Romkes and Others Judgment of the Court of 16 June 1987. # Officier van Justitie for the District of Zwolle v L. Romkes and others. # Reference for a preliminary ruling: Arrondissementsrechtbank Zwolle - Netherlands. # Regulation laying down technical measures for the conservation of fishery resources - Size of plaice. # Case 53/86.