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090 | _a12898 | ||
099 |
_tARC _zALEX25191 _aScientifique _fCorrespondance |
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100 | _a20241101d1939 m||y0frey50 ba | ||
200 |
_aPaul Langevin. _eCorrespondance |
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214 |
_aVitry-sur-Seine _d01/01/1939 |
||
307 | _aLettre | ||
327 | _aJoint son témoignage sur Georges Urbain. | ||
700 |
_aCacan _bF. _4070 |
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701 |
_aLangevin _4660 |