共 42 条
[4]
AGRAWAL A, 2004, UNPUB PUBLIC SECTOR
[5]
AGRAWAL AK, 2003, NATL BUREAU EC RES W, V9950
[7]
Arora Ashish., 1995, Economics of Innovation and New Technology, V4, P41, DOI [10.1080/10438599500000013, DOI 10.1080/10438599500000013]
[8]
Audretsch DB, 1996, AM ECON REV, V86, P630
[9]
BERCOVITZ J, 2004, UNPUB ACAD ENTREPREN