00283nam a2200121Ia 45000030006000000080041000060400015000471000018000622450043000802600009001235460012001320050017001440STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBoley,F.I Ed.  aAmerican journal of Physics Vol-41 Apr  c1973  aEnglish20220125165827.0