LI Yan-hua, GAO Shi-wei. Clusters structural analysis of Tianjin aviation industry based on social network analysis[J]. Journal of Civil Aviation University of China.
AJAY AGRAWAL,IAIN COCKBURN. The anchor tenant hypothesis:Exploring the role of large,local,R&D-intensive firms in regional innovation[J]. International Journal of Industrial Organization,2003,21(9):1227-1253.