1. IPCC Special Report on Renewable Energy Sources and Climate Change;Edenhofer,2011
2. COM (2008) 30: Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions: 20 20 by 2020—Europe’s Climate Change Opportunity,2008
3. COM (2011) 31: Renewable Energy: Progressing towards the 2020 Target,2011
4. EUROSTAT Electricity generated from renewable sourceshttp://appsso.eurostat.ec.europa.eu/nui/show.do?dataset=nrg_ind_333a&lang=en
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