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| 100 | _a19880426d1980 k y0pory5003 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aDE | ||
| 200 | 1 |
_aBarriers to entry _ea theoretical treatment _fC. C. V. Weizsãcker |
|
| 210 |
_aBerlin _cSpringer-Verlag _d1980 |
||
| 215 |
_aVI, 220 p. _cil. _d25 cm |
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| 225 | 2 |
_aLecture notes in economics and mathematical systems _v185 |
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| 500 | 1 | 0 |
_aLecture notes in economics and mathematical systems; _n185 |
| 675 |
_a338 _vmed _zfre |
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| 700 | 1 |
_aWeizsacker, _bC. C. V. |
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| 942 |
_cLIVRO _n0 |
||