Court of Justice 14 April 2011, Case C-331/09: Judgment of the Court (First Chamber) of 14 April 2011 — European Commission v Republic of Poland (Failure of a Member State to fulfil obligations — State aid — Aid granted by the Republic of Poland to Technologie Buczek Group — Commission decision declaring that aid to be incompatible with the common market and ordering its recovery — Failure to implement within the prescribed period)

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