共 15 条
[8]
Relationship Dynamics between University Research Centers and Industrial Firms: Their Impact on Technology Transfer Activities[J] . Michael D. Santoro,Shanthi Gopalakrishnan.The Journal of Technology Transfer . 2001 (1)
[10]
International R&D spillovers[J] . David T. Coe,Elhanan Helpman.European Economic Review . 1995 (5)