00279nam a2200121Ia 4500008004100000041000800041082001500049100001600064245002500080260002000105365001600125700001600141230718s9999    xx            000 0 und d  aeng  a536.7bGHA  aGhatak A.K.  aMathematical Physics  c1995bMacmillan  cRs.b185.00  aGhatak A.K.