00297nam a2200121Ia 45000030006000000080041000060400015000471000019000622450034000812600031001155460012001460050017001580STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aYoung Nicholas  aIntroduction to Hilbert Space  bCambridge universityc1989  aEnglish20220125165954.0