共 60 条
[2]
[Anonymous], 2006, DATA PRODUCTION METH, DOI DOI 10.2139/SSRN.944470
[3]
[Anonymous], 2005, WORLD INV REP
[4]
[Anonymous], 2007, CLUSTERS NETWORK INN
[6]
Archibugi D, 1996, INNOVATION, PATENTS AND TECHNOLOGICAL STRATEGIES, P17
[8]
Audretsch DB, 1996, AM ECON REV, V86, P630
[10]
Motives to patent: Empirical evidence from Germany
[J].
RESEARCH POLICY,
2006, 35 (05)
:655-672