1. Building Energy Research Center of Tsinghua University. Annual Research Report of China’s Building Energy Efficiency Development. Beijing: China Building Industry Press, 2007
2. Liu Jiaping, Yang Liu. Thermal design of a zero energy energy cavedwelling solar house. Acta Energiae Solaris Sinica, 1999, 20(3): 302–310 (in Chinese)
3. Yang Liu, Liu Jiaping. Improvements of thermal environment of traditional Yaodong dwellings with solar energy. Acta Energiae Solaris Sinica, 2003, 24(5): 605–610 (in Chinese)
4. Kimura K. Solar architecture for the happiness of mankind. Solar Energy, 1999, 67(4): 169–179
5. Duffie J A, Beckman A. Solar Engineering of Thermal Processes. New York: John Wiley & Sons, 1980