生产性老龄化背景下“老年精英”社会参与的实证研究--以北京市离退休老干部为例
생산성노령화배경하“노년정영”사회삼여적실증연구--이북경시리퇴휴로간부위례
Empirical Analysis on Social Participation of the Old Elites on the Context of Productive Aging--Take Beijing Retired Cadres For Example
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