Judgment of the Court (Fifth Chamber) of 27 November 2003 In Joined Cases C-34/01 to C-38/01 (Reference for a preliminary ruling from the Corte Suprema di Cassazione): Enirisorse SpA v Ministero delle Finanze (Public undertakings — Transfer to public undertakings of a proportion of port charges paid to the State — Competition — Abuse of a dominant position — State aid — Charge having equivalent effect — Internal taxation — Free movement of goods)