1. Council of the European Union. Presidency conclusions of the Brussels European Council 8/9 March 2007. Brussels; 2 May 2007.
2. Commission of the European Communities. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions – 2020 by 2020 – Europe’s climate change opportunity. COM(2008) 30 final. Brussels; 23 January 2008.
3. Commission of the European Communities. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Second strategic energy review – an EU energy security and solidarity action plan. COM(2008) 781 final. Brussels; 13 November 2008.
4. Commission of the European Communities. Communication from the Commission. Energy for the Future: Renewable Sources of Energy. Green Paper for a Community Strategy. COM(96) 576 final. Brussels; 20 November 1996.
5. European Commission. Communication from the Commission. Energy for the future: renewable sources of energy. white paper for a community strategy and action plan: COM(97)599 final. Brussels, Belgium; 1997.