000 00464nam a22001457a 4500
001 10731
090 _a10731
099 _tARC
_zALEX23024
_fCorrespondance
100 _a20241101d1929 m||y0frey50 ba
200 _aPaul Langevin.
_eCorrespondance
214 _aAnn Arbor Michigan
_d11/07/1929
300 _aEn-tĂȘte: University of Michigan, Ann Arbor, Department of Physics
307 _aLettre
700 _aDirac
_bP.A.M.
_4070
701 _aLangevin
_4660