| 000 | 00345pab a2200145 454500 | ||
|---|---|---|---|
| 008 | 180718b1986 xxu||||| |||| 00| 0 eng d | ||
| 100 | _aMansfield, Edwin | ||
| 245 |
_aPatents and innovation _bAn empirical study |
||
| 260 | _c1986 | ||
| 300 | _a173-81 | ||
| 362 | _aFeb. | ||
| 650 | _aPatents | ||
| 773 | _aManagement Science | ||
| 909 | _a14733 | ||
| 999 |
_c14733 _d14733 |
||