Brussels, 14/12/2006 (Agence Europe) - On 12 December, the European Commission decided to refer Greece to the European Court of Justice (ECJ) for failure to respect European legislation in respect of the single European sky. The single European sky framework regulation came into force in April 2004. It separates the provision of air navigation services on the one hand, and the supervision and regulation of these services on the other. It requires Member States to create or establish an...