000
00271pas a2200097 454500
008
160820b1972 xxu||||| |||| 00| 0 eng d
022
_a
0048-7333
245
_a
RESEARCH POLICY
260
_a
AMSTERDAM
_b
ELSEVIER SCIENCE BV
_c
1972
906
_a
37(1), 2008+
_b
_c
_d
Jan - Dec,2008
999
_c
475447
_d
475447