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| 001 | 11956 | ||
| 090 | _a11956 | ||
| 099 |
_tARC _zALEX24249 _aScientifique _fCorrespondance |
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| 100 | _a20241101d1925 m||y0frey50 ba | ||
| 200 |
_aPaul Langevin. _eCorrespondance |
||
| 214 | _d18/08/1925 | ||
| 300 | _aEn-tête: Schloss Lautrach (Château Lautrach) | ||
| 307 | _aPhotocopie Lettre | ||
| 327 | _aEn allemand. | ||
| 700 |
_aEinstein _bAlbert _4070 |
||
| 701 |
_aLangevin _4660 |
||