1. Action Plan for Energy Efficiency: Realising the Potential, Communication from the Commission;European Commission,2006
2. Building Renovation and Modernisation in Europe: State of the Art Review;Itard,2008
3. China building energy conservation stratagems study;Jiang;Engineering Sciences,2011
4. A review on buildings energy consumption information;Pérez-Lombard;Energy and Buildings,2008
5. Statistical Review of World Energy;BP Company,2011