1. Presidency of the council of the European Union, "Brussels European council 8/9 march 2007-presidency conclusions, Brussels, 2 May 2007; Available online: http://register.consilium.europa.eu/pdf/en/07/st07/st07224-re01.en07.pdf.
2. General Secretariat of the Council of the European Union "Energy and climate change – Elements of the final compromise, Brussels, 12 December 2008; Available online: http://www.eu2008.fr/webdav/site/PFUE/shared/import/1211_Conseil_europeen/European_council_12-12-2008_Energy_and_climate_change_compromise_EN.pdf
3. Citizens’ summary EU climate and energy package;EU,2008
4. "How much biomass can Europe use without harming the environment?", Briefing No.2;European Environment Agency,2005
5. Status of biomass Resource assessment Version 1;Biomass Energy Europe,2008