00317nam a2200145Ia 45000030006000000080041000060400015000471000023000622450032000852500010001172600009001273000006001365460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBalakrishnan, A.V.  aApplied functional analysis  aFirst  c1976  a0  aEnglish20220125165953.0