我国人口老龄化发展的阶段、趋势和区域差异
李日邦, 王五一, 谭见安, 何洋, 杨林生
The development stages and trend of population ageing and its regional differences in China
LI Ribang, WANG Wuyi, TAN Jianan, HE Yang, YANG Linsheng
地理研究 . 1999, (2): 113 -121 .  DOI: 10.11821/yj1999020001