EN中文
The Impact of Knowledge Spillover on the R&D Efficiency in China: A Multi-spatial Perspective
Qin Xionghe, Hou Chunguang, Lu Han, Du Debin
SCIENTIA GEOGRAPHICA SINICA . 2021, (3): 380 -386 .  DOI: 10.13249/j.cnki.sgs.2021.03.002