TITJUR Judgment of the Court of First Instance (Second Chamber, extended composition) of 15 December 1999. # Kesko Oy v Commission of the European Communities. # Control of concentrations - Action for annulment - Admissibility - Objet of the proceedings - Competence of the Commission under Article 22(3) of Regulation (EEC) No 4064/89 - Effect on trade between Member States - Creation of a dominant position. # Case T-22/97. Kesko v Commission