共 50 条
[1]
ACS ZJ, 1992, AM ECON REV, V82, P363
[3]
[Anonymous], 1960, SCI ENDLESS FRONTIER
[4]
[Anonymous], 2006, Journal of Technology Transfer, DOI DOI 10.1007/S10961-006-7203-3
[5]
Arundel A., 2004, Economics of Innovation and New Technology, V13, P559, DOI [DOI 10.1080/1043859092000234311, 10.1080/1043859092000234311]
[7]
AZAGRACARO JM, 2007, KNOWLEDGE EXTERNALIT, pCH9
[8]
AZAGRACARO JM, 2007, IN PRESS APPL EC