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_a530.12 _bBE-L |
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_aBerthold,Gerog Englert _914682 |
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| 245 | 0 |
_aLectures on question mechanics:Perturbed evolution _cGerog EnglertBerthold |
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| 260 |
_aNew Jersey _bWorld Scientific _c2006 |
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| 300 | _a197 | ||
| 942 | _cBK | ||
| 950 | _o530.12 BE-L | ||
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