00311nam a2200133Ia 45000030006000000080041000060400015000471000016000622450040000782500010001182600020001285460012001480050017001600STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGhosh, P.K.  aMathematics of waves and vibrations  aFirst  bMacmillanc1975  aEnglish20220125170142.0