1. Comparing European residential building stocks: performance, renovation and policy opportunities;Meijer;Build Res Inf,2009
2. European Commission & Directorate-General for Energy and Transport. EU energy and transport in figures; 2010a.
3. Huber A, Kortman J, Benito, AM, Scharp M. Developing and implementing. Effective household energy awareness services; 2010.
4. EUROSTAT. Energy – yearly statistics 2008; 2010.
5. Energy and environmental issues of smart buildings;Ghiaus,2004