1. 2009 annual report on China building energy efficiency;Tsinghua University Building Energy Research Center,2009
2. ‘Ninth five year plan’ (1996–2000) and a 2010 plan of building energy saving;Ministry of Construction of the People's Republic of China,1996
3. Energy conservation regulations of residential buildings;Ministry of Construction of the People's Republic of China,2000
4. Guidance on a pilot project for urban heating system reform;Ministry of Construction of the People's Republic of China,2003
5. Guidance for further promotion of urban heating system reform;Ministry of Construction of the People's Republic of China,2005