00300nam a2200133Ia 45000030006000000080041000060400015000471000015000622450040000772500011001172600009001285460012001370050017001490STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aArfken, G.  aMathematical methods for physicists  aSecond  c1970  aEnglish20220125170123.0