1. World Energy Outlook 2011, International Energy Agency; 2011. 〈http://www.worldenergyoutlook.org〉.
2. Annual Energy Outlook 2012 Early Release Overview, U.S. Energy Information Administration; 2012, 〈http://www.eia.gov/forecasts/aeo/er〉.
3. European Commission, Proposal for a COUNCIL DECISION establishing the Specific Programme Implementing Horizon 2020—The Framework Programme for Research and Innovation (2014–2020), COM(2011) 811 final, 2011/0402 (CNS).
4. Integration issues of distributed generation in distribution grids;Coster;Proceedings of the IEEE,2011
5. Swierczynski M, Teodorescu R, Rasmussen CN, Rodriguez P, Vikelgaard H. Overview of the energy storage systems for wind power integration enhancement. In: Proceedings of the IEEE international symposium on industrial electronics (ISIE 2010), 3749-3756, 2010.