00292nam a2200133Ia 45000030006000000080041000060400015000471000016000622450025000782500010001032600016001135460012001290050017001410STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGupta, B.D.  aMathematical physics  aFirst  bVikasc1991  aEnglish20220125170121.0