Regional Differentiation Characteristics and Environmental Causes of Elderly Population in China based on County Scale
Xu Xin, Zhao Yuan, Zhang Xinlin, Zeng Tonggang, Xia Siyou
SCIENTIA GEOGRAPHICA SINICA ›› 2018, Vol. 38 ›› Issue (9) : 1449-1457.
Regional Differentiation Characteristics and Environmental Causes of Elderly Population in China based on County Scale
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