| 000 | 00625nam#a2200217#c#4500 | ||
|---|---|---|---|
| 003 | IEF | ||
| 005 | 20180219150738.0 | ||
| 008 | 941205s1992 uuu####fr####| 0||u| |u | ||
| 040 | _aIEF | ||
| 100 | 1 |
_aJaffe, Adam Benjamin _922559 |
|
| 245 | _aGeographic localization of knowledge spillovers as evidenced by patent citations | ||
| 260 |
_aCambridge (Mss.) _b NBER _c1992 |
||
| 300 |
_a30 p. _c 22 cm |
||
| 500 | _aResumen. -- Conclusiones. -- Bibliografía | ||
| 490 | _aNBER. Working paper ; 3993 | ||
| 650 | 4 |
_aPATENTES _947974 |
|
| 650 | 4 |
_aESTADOS UNIDOS _942888 |
|
| 942 | _cLIB | ||
| 942 | _z38475 | ||
| 999 |
_c10093 _d10093 |
||