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郭腾云, 徐勇, 王志强

The Analyses of Metropolitan Efficiencies and Their Changes in China Based on DEA and Malmquist Index Models

GUO Tengyun, XU Yong, WANG Zhiqiang

地理学报 . 2009, (4): 408 -416 . DOI: 10.11821/xb200904003