Andrew CLAPHAM (ed.), European Community Law, 1990, I/1, 189-236, Collected Courses of the Academy of European LawCollected Courses of the Academy of European Law, [AEL]
PIPKORN, Jorn, Le rapprochement des législations dans la Communauté à la lumière de l'Acte unique européen, in Andrew CLAPHAM (ed.), European Community Law, 1990, I/1, 189-236, Collected Courses of the Academy of European LawCollected Courses of the Academy of European Law, [AEL] - https://hdl.handle.net/1814/3049