Case C-401/09 P: Judgment of the Court (Third Chamber) of 9 June 2011 — Evropaïki Dynamiki — Proigmena Systimata Tilepikoinonion Pliroforikis kai Tilematikis AE v European Central Bank (Appeal — Admissibility — Power of attorney — Consortium — Public contracts — Negotiated procedure — IT consultancy and IT development services — Rejection of the tender — Rules of Procedure of the General Court — Interest in bringing proceedings — Ground for exclusion — Permit required by national law — Obligation to state reasons)