TY - Acta Geographica Sinica A1 - ZHANG Xiaoming T1 - Characteristics of the Yangtze River Delta Mega-City Region Y1 - 2006-10-25 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 1025 EP - 1036 VL - 61 IS - 10 UR - {https://www.geog.com.cn/EN/10.11821/xb200610002} N1 - 10.11821/xb200610002 ER -