1. Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on Energy Efficiency, Amending Directives 2009/125/EC and 2010/30/EU and Repealing Directives 2004/8/EC and 2006/32/EChttp://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32012L0027&from=EN
2. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions—A Policy Framework for Climate and Energy in the Period from 2020 to 2030http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:52014DC0015&-from=EN
3. Energy Balance Sheets European Commission—Eurostathttp://dx.doi.org/10.2785/032728
4. Exit economics: The relatively low cost of Germany’s nuclear phase-out