1Xu Fuliu, Zhao Shanshan, Dawson R W, et al. A Triangle Model for Evaluating the Sustainability Status and Trends of Economic Development[J].Ecol Modell, 2006,195(3-4) :327-337.
2Zhu Wei-hong, Koo Bon-hak. Wetlands Classifying Characteristics by Wetland Classifying Systems-Cases on the Tumen River and Han River[J].J of Korean Env Res & Reveg Tech, 2006,9(6) : 152-161.
