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基于分形理论的西部干旱区县域城镇体系研究──以定西县为例
徐中民, 陈怀录, 徐丽华, 蒲欣冬
Research on Urban System of a County Region Based on Fractal Theory──Taking Dingxi County of Gansu Province as an Example
PU Xin-dong, CHEN Huai-lu, XU Zhong-min, XU Li-hua
中国沙漠 . 2002, (2): 177 -183 .