00289nam a2200121Ia 45000030006000000080041000060400015000471000017000622450050000792600009001295460012001380050017001500STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKonrad Knopp  aProblem book in the heory of functions vol II  c1952  aEnglish20220125170005.0