00310nam a2200133Ia 45000030006000000080041000060400015000471000031000622450027000932500011001202600016001315460012001470050017001590STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSubrahmanyam, N.; Brij Lal  aWaves and oscillations  aSecond  bVikasc1977  aEnglish20220125170142.0