| 000 | 00539nam a2200169Ia 4500 | ||
|---|---|---|---|
| 008 | 100324s9999 xx 000 0 und d | ||
| 020 | _aFS IV 89 - 18 | ||
| 040 | _a, | ||
| 100 | _aSchwalbach, Joachim; Zimmermann, Klaus F | ||
| 245 | _aPoisson model of patenting and firm structure in Germany | ||
| 260 |
_c1989 _bWissenschaftszentrum, Berlin |
||
| 300 |
_bSee WZ 330 FIT (Includes Acc. Nos. 32341, 32342 , 32343 & 32344) _a23 |
||
| 366 | _b1989 | ||
| 650 | _aECONOMICS | ||
| 942 |
_cWP _2ddc |
||
| 999 |
_c92712 _d92712 |
||