共 16 条
[8]
Determinants of successful R&D cooperation in Japanese small businesses: The impact of organizational and contractual characteristics[J] . Hiroyuki Okamuro. Research Policy . 2007 (10)
[9]
Geographically and technologically mediated knowledge spillovers between European regions[J] . Lydia Greunz. The Annals of Regional Science . 2003 (4)