TY - GEOGRAPHICAL RESEARCH A1 - WANG Mao-jun, CAO Guang-zhong, ZHAO Qun-yi, YANG Xue-chun T1 - Study on structure of urban system in China from the angles of distance between cities and city population size Y1 - 2010-07-20 00:00:00.0 JF - GEOGRAPHICAL RESEARCH JO - GEOGRAPHICAL RESEARCH SP - 1257 EP - 1268 VL - 29 IS - 7 UR - {https://www.dlyj.ac.cn/EN/10.11821/yj2010070011} N1 - 10.11821/yj2010070011 ER -