1. Green Paper, Towards a European strategy for the security of energy supply; COM(2000) 69 final (29/11/00); europa.eu.int/comm/energy_transport/doc-principal/pubfinal_en.pdf
2. EU Energy and Transport Figures, Statistical Pocketbook 2003, European Commission; europa.eu.int/comm/dgs/energy_transport/figures/pocketbook/2003_en.htm
3. European Environment Agency, Data Sets “Trends in emissions of greenhouse gases (EEA sector classification and IPCC sector classification)”, 08/2004; dataservice.eea.eu.int/dataservice/metadetails.asp?id=699
4. European Environment Agency, EEA Briefing No 2/2004, Energy subsidies & renewables
5. IEA World Energy Investment Outlook 2003, ISBN 92-64-01906-5 (2003)