×
模态框(Modal)标题
在这里添加一些文本
Close
Close
Submit
Cancel
Confirm
×
模态框(Modal)标题
×
Toggle navigation
Home
About Journal
Editorial Board
Instruction
Journal Online
Just Accepted
Current Issue
Archive
Most Read
Most Download
Most Cited
E-mail Alert
RSS
Subscription
Download
Contact Us
中文
Empirical Analysis of the Impact of PopulationAging on Technology Progress
GUO Ruidong, ZHAO Lingrui
JOURNAL OF HEBEI UNIVERSITY (Philosophy and Social Science) . 2017, (
3
): 126 -135 . DOI: 10.3969/j.issn.1005-6378.2017.03.018