共 25 条
[1]
[Anonymous], 1984, R&D, Patents, and Productivity
[2]
[Anonymous], 1989, HDB IND ORG
[3]
Audretsch, 1995, INNOVATION IND EVOLU, P4
[4]
Bjorkman A, 1997, TAPPI J, V80, P71
[8]
DOUGLAS C, 2001, FEDGAZETTE
[9]
Engel C, 1997, MON LABOR REV, V120, P32
[10]
GHOSAL V, 2007, INNOVATION PRODUCTIV, P1