TY - GEOGRAPHICAL RESEARCH A1 - WANG Mao-jun, SHEN Yu-ming, GAO Yi-cheng T1 - The spatial structure of Shandong urbansystem in the Period of Republic of China:Based on the analysis of input goods spacial flow Y1 - 2007-11-25 00:00:00.0 JF - GEOGRAPHICAL RESEARCH JO - GEOGRAPHICAL RESEARCH SP - 1221 EP - 1232 VL - 26 IS - 6 UR - {https://www.dlyj.ac.cn/EN/10.11821/yj2007060016} N1 - 10.11821/yj2007060016 ER -