COMMISSION DECISION of 9 December 2004 declaring a concentration incompatible with the common market pursuant to Article 8(3) of the Council Regulation (EEC) No 4064/89 (Merger Regulation (ECMR)) (Case No COMP/M.3440 — EDP/ENI/GDP) (notified under document number C(2004) 4715) (Only the English version is authentic) (Text with EEA relevance) (2005/801/EC)