1. SmartGrids. European Technology Platform, Vision and strategy for Europe's electricity networks of the future, 2006. See also: 〈www.ec.europa.eu/research/energy/pdf/smartgrids_en.pdf〉.
2. Oscillations behaviour of the European interconnected power system in a deregulated energy market;Kurth;Electr Eng,2001
3. Union for the Co-ordination of Transmission of Electricity (UCTE). Map of the European Interconnected Network 2005. See also: 〈www.ucte.org〉.
4. German Institute for Standardization. DIN EN 50160, Voltage characteristics of electricity supplied by public distribution systems, 1999.
5. Deutsche Verbundgesellschaft (DVG). Spannungshaltung und Blindleistungshaushalt, Heidelberg, 1998 [translation into English: voltage and reactive power, Language of original text: German].