00361nam a2200145Ia 45000030006000000080041000060400015000471000016000622450057000782500006001352600037001413000008001785460012001860050017001980STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKari Popper 4aThe Two fundamental Problems of The Theory Knowledge  a1  bRoutledge ; Londonc2012aLondon  a510  aEnglish20220125165307.0