TY - PROGRESS IN GEOGRAPHY A1 - Lucang WANG, Rongwei WU, Haimeng LIU, Peng ZHOU, Jiangjiang KANG T1 - Spatial patterns and regional differences of population ageing in China based on the county scale Y1 - 2016-08-25 09:19:56.123 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 921 EP - 931 VL - 35 IS - 8 UR - {https://www.progressingeography.com/EN/10.18306/dlkxjz.2016.08.001} N1 - 10.18306/dlkxjz.2016.08.001 ER -