EN中文
Technological heterogeneity in external collaboration and its impact on technological diversification in the Yangtze River Delta cities
CAO Zhan, LI Hang, YE Xin, MA Haitao, DAI Liang, LU Jiayi
Acta Geographica Sinica . 2025, (12): 3181 -3202 .  DOI: 10.11821/dlxb202512005