[1] Song Ping.Ecopolis: The object of urban development in the 21th century[J]. Areal Research and Development, 2000, 19(3):26-30.(in Chinese)
[2] Register Richard. Ecocity Berkeley: Building cites for a heal ̄thy future[M]. Berkeley: North Atlantic Books, 1987.
[3] Sybrand P Tjllingii.Ecopolis: Ecologically sound urban development[M]. Leiden: Backhuys Publishers, 1995.
[4] Sheng Xueliang, Peng Buzhuo, Wang Hua, et al. Perspective on ideology about building ecocity and its standards for evaluating ecocity[J]. Environment Herald, 2001(1): 5-8.(in Chinese)
[5] Gu Chuanhui, Chen Guizhu. Study on index system of eco-city assessment[J]. Environment Protection, 2001(11): 24-27.(in Chinese)
[6] Hu Shenghuang.A multilevel grey evaluation method for subjective index appraisal[J]. System Engineering Theory and Practice, 1996, 16(1): 12-20.(in Chinese)
[7] Luo Xiaoming, Yang Huihu. A grey comprehensive evaluation model[J].System Engineering and Electron Technology, 1994, 16(9): 18-26.(in Chinese)
[8] Deng Julong. Tutorial of grey system theory[M]. Wuhan: Huazhong University of Science and Technology Press, 1992.(in Chinese)