00270nam a2200121Ia 45000030006000000080041000060400015000471000017000622450031000792600009001105460012001190050017001310STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aFrench, A.P.  aPrincple of modern physics  c1958  aEnglish20220125170217.0