000 | 00316nas a22001217a 4500 | ||
---|---|---|---|
003 | USJPLib | ||
008 | 171121b xxu||||| |||| 00| 0 eng d | ||
022 | _a00487333 | ||
041 | _aEng. | ||
245 | _aResearch Policy, Vol. 16-17 | ||
260 |
_aAmsterdam _bElsevier Science Publishers B.V. _c1987/88 |
||
942 |
_2ddc _cBP _s1 |
||
999 |
_c145432 _d145432 |