全球科研论文合作网络的结构异质性及其邻近性机理
刘承良, 桂钦昌, 段德忠, 殷美元

Structural heterogeneity and proximity mechanism of global scientific collaboration network based on co-authored papers
Chengliang LIU, Qinchang GUI, Dezhong DUAN, Meiyuan YIN
图2 全球科研论文合作网络的等级层次结构(据Pajek和VOSviewer绘制)
Fig. 2 The hierarchical structure of global scientific collaboration network