1. Design Standard for Energy Efficiency of Public Buildings;Beijing Construction Bureau,2005
2. Beijing Municipal Commission of Development and Reform, 2009. Current prices of public products. 〈http://www.bjpc.gov.cn/syjg/syjg_ggspxxjg/200605/t119695.htm〉 (in Chinese). (Accessed on 15/04/2009).
3. Beijing Statistical Yearbook 2007;Beijing Statistical Bureau,2007
4. Actual Improvements of Energy Conservation Strategies in Domestic Properties in Norfolk;Bourgeois,2009
5. Carbon Trust, 2007. Degree Days for Energy Management-a Practical Introduction, 24p. 〈http://www.sei.ie/CTG004_Degree_days-_energy_mgt.pdf〉. (Accessed on 01/05/2009).