%0 Journal Article %A Argyros, Spiros %A Arvanitakis, Alexander %T Regular Averaging and Regular Extension Operators in Weakly Compact Subsets of Hilbert Spaces %J Serdica Mathematical Journal %D 2004 %P 527-548 %V 30 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2004_30_4_a5/ %G en %F SMJ2_2004_30_4_a5