粤港澳大湾区城市群知识多中心的演化过程与机理

马海涛,黄晓东,李迎成

The evolution and mechanisms of megalopolitan knowledge polycentricity of Guangdong-Hong Kong-Macao Greater Bay Area

MA Haitao,HUANG Xiaodong,LI Yingcheng

图4 1990-2016年GBA所有城市国际刊物发文量的结构演变

Fig. 4 Share of GBA cities' WOS publications to the GBA's total, 1990 to 2016