Journal of Beijing University of Posts and Telecommunications(Social Sciences Edition)
Two-way Investment, Patent Heterogeneity and Enterprises Innovative Quality
LI Hong-bing1, DUAN Xue-yi3, ZHAI Rui-rui2
JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM . 2020, (2): 96 -105 .  DOI: 10.19722/j.cnki.1008-7729.2019.0426

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