1. http://www.oe.energy.gov/1165.htm 2010
2. European Commission 2006 http://ec.europa.eu/research/energy/pdf/smartgrids_en.pdf
3. R. Belmans Smartgrids technology platform Innovation for Sustainable Prod. Conf. 2008
4. Global Environment Fund/Center for Smart Energy 2005
5. Global Environment Fund/Global Smart Energy 2008 http://www.globalenvironmentfund.com/data/uploads/The%20Electricity%20Economy.pdf