1. Climate change 2007: synthesis report;Pachauri,2007
2. United Nations Framework Convention on Climate Change. Kyoto protocol to the United Nations framework convention on climate chance. In: United Nations Framework Convention on Climate Change, editor. Kyoto, JP: United Nations; 1998.
3. Energy 2020 a strategy for competitive, sustainable and secure energy;European Commission,2010
4. Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC;European Parliament and the Council,2009
5. Energy independence and security act of 2007;U.S. Congress,2007