00289nam a2200121Ia 45000030006000000080041000060400015000471000016000622450051000782600009001295460012001380050017001500STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGopalan, D.  aIntermediate physics theoretical and practical  c1948  aEnglish20220125170103.0