1. IPCC. Intergovernmental Panel on Climate Change: Fourth assessment report, synthesis report, ; 2007. 52 p.
2. EREC, European Renewable Energy Council. Renewable energy target for Europe 20% by 2020, ; 2004.
3. EREC, European Renewable Energy Council. Renewable energy scenario to 2040, half of the global energy supply from renewables in 2040, ; 2006.
4. Impact of wind generation on the operation and development of the UK electricity systems;Strbac;Electr Power Syst Res,2007
5. Lee B, Gushee D. Massive electricity storage, An AIChE White Paper, American Institute of Chemical Engineers, 3 Park Avenue, New York, NY 10016, ; 2007.