Court of Justice 26 April 2018, Joined Cases C-236/16 and C-237/16: Judgment of the Court (First Chamber) of 26 April 2018 (requests for a preliminary ruling from the Tribunal Supremo — Spain) — Asociación Nacional de Grandes Empresas de Distribución (ANGED) v Diputación General de Aragón (References for a preliminary ruling — Regional tax on large retail establishments — Freedom of establishment — Protection of the environment and town and country planning — State aid — Selective measure)

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