00293nam a2200133Ia 45000030006000000080041000060400015000471000016000622450025000782500011001032600016001145460012001300050017001420STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGupta, B.D.  aMathematical physics  aSecond  bVikasc1997  aEnglish20220125170127.0