00343nam a2200121Ia 450000500170000000800410001702000150005805000200007310000180009324500570011126000360016865000170020420251229190644.0251229s9999    xx            000 0 und d  a0121898008  aQC 20.7.G76C67   aCornwell, J.F 0aGroup theory in physicsban introductioncJ Cornwell  aSan DiegobAcademic pressc1997  aGroup Theory