1. Stern Review on the Economics of Climate Change 2006 www.hm-treasury.gov.uk/independent_reviews/stern_review_economics_climate_change/sternreview_index.cfm.
2. Commission of the European Communities Green Paper: A European Strategy for Sustainable Competitive and Secure Energy SEC(2006) 317 http://ec.europa.eu/energy/green-paper-energy/doc/.2006_03_08_gp_document_en.pdf.
3. Commission of the European Communities Communication from the Commission to the European Council and the European Parliament: An Energy Policy for Europe COM(2007) 1 final http://ec.europa.eu/energy/energy_policy/doc/01_energy_policy_for_europe_en.pdf.
4. European Commission Toward A Strategic Energy Technology Plan COM(2007) 847 ec.europa.eu/energy/energy-policy/doc/19_strategic_energy_technology_plan_en.pdf.
5. European Commission World Energy Technology Outlook - 2050 2006 http://ec.europa.eu/research/energy/pdf/weto-h2_en.pdf.