00309nam a2200121Ia 45000030006000000080041000060400015000471000015000622450049000772600032001265460012001580050017001700STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKesavan,S.  aNonlinear functional analysis a first course  bHindustan book agencyc2004  aEnglish20220125165954.0