00319nam a2200133Ia 45000030006000000080041000060400015000471000019000622450048000812500010001292600017001395460012001560050017001680STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aPingriff, G.N.  aExercises and problems in practical physics  aFirst  bG.Bellc1931  aEnglish20220125170118.0