1. Energy, Transport and Environment Indicators;Eurostat,2012
2. EU energy and climate change strategy;da Graça Carvalho;Energy,2012
3. World Energy Outlook;International Energy Agency,2012
4. Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings;European Union;Off. J. Eur. Union,2010
5. Zero Energy Buildings : a Critical Look at the Definition;Torcellini,2006