1. Promoting Energy Efficiency Investments. Case Studies in the Residential Sector;International Energy Agency (IEA),2008
2. Energy, environment and sustainable development;Omer;Renew. Sustain. Energy Rev.,2008
3. International Energy Outlook 2013;U.S. Energy Information Administration,2013
4. Decision No 406/2009/EC of the European Parliament and of the council of 23 April 2009 on the efforts of member states to reduce their greenhouse gas emissions to meet the community's emission reductio;European Parliament and Council of the European Union;Off. J. Eur. Union,2009
5. National Accounts of Spain. Accounting Series (Spanish National Accounts, Industrial Products, Services and Trade Surveys, Continuous Household Budget Survey, Wage Structure Survey, Labour Force Survey);National Statistics Institute (NSI=INE, 2011), Madrid,2011