00308nam a2200133Ia 45000030006000000080041000060400015000471000024000622450025000862500010001112600024001215460012001450050017001570STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aChattopadhyay, P.K.  aMathematical physics  aFirst  bWiley Easternc1990  aEnglish20220125170127.0