| 000 | 00509nam#a2200205#c#4500 | ||
|---|---|---|---|
| 003 | IEF | ||
| 005 | 20180219154728.0 | ||
| 008 | 941205s1989 uuu####fr####| 0||u| |u | ||
| 040 | _aIEF | ||
| 100 | 1 |
_aGriliches, Zvi _919628 |
|
| 245 | _aPatents: Recent trends and puzzles | ||
| 260 |
_aCambridge [Mass.] _b NBER _c1989 |
||
| 300 |
_a38 p. _c 24 cm. |
||
| 500 | _aResumen. -- Bibliografía | ||
| 490 | _aNBER. WP ; 2922 | ||
| 650 | 4 |
_aPATENTES _947974 |
|
| 942 | _cLIB | ||
| 942 | _z32427 | ||
| 999 |
_c42888 _d42888 |
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