TY - JOUR AU - Argyros, Spiros AU - Arvanitakis, Alexander TI - Regular Averaging and Regular Extension Operators in Weakly Compact Subsets of Hilbert Spaces JO - Serdica Mathematical Journal PY - 2004 SP - 527 EP - 548 VL - 30 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SMJ2_2004_30_4_a5/ LA - en ID - SMJ2_2004_30_4_a5 ER -