LEADER 00823nam0-22002891i-450- 001 990001034470403321 035 $a000103447 035 $aFED01000103447 035 $a(Aleph)000103447FED01 035 $a000103447 100 $a20000920d1962----km-y0itay50------ba 101 0 $aeng 200 1 $aInvariance in Quantum Mechanics and Group Extensions$fby Louis Michel 210 $aBures-sur-Yvette$cIHES Saclay$d1962 300 $aReport I.H.E.S. 610 0 $aTeoria dei gruppi 610 0 $aPrincipi di simmetria 676 $a512 700 1$aMichel,$bLouis$0346876 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990001034470403321 952 $a10A-014$b2873$fFI1 959 $aFI1 996 $aInvariance in Quantum Mechanics and Group Extensions$9339036 997 $aUNINA DB $aING01