Research Policy
Research Policy > 1997 > 26 > 1 > 1-18
Research Policy > 1997 > 26 > 1 > 85-103
Research Policy > 1997 > 26 > 1 > 19-32
Research Policy > 1997 > 26 > 1 > 49-66
Research Policy > 1997 > 26 > 1 > 67-84
Research Policy > 1997 > 26 > 1 > 105-119
Research Policy > 1997 > 26 > 1 > 33-48
Research Policy > 1997 > 26 > 2 > 209-227
Research Policy > 1997 > 26 > 2 > 141-156
Research Policy > 1997 > 26 > 2 > 157-168
Research Policy > 1997 > 26 > 2 > 169-189
Research Policy > 1997 > 26 > 2 > 191-207
Research Policy > 1997 > 26 > 3 > 303-315