%0 Journal Article %A Ya. I. Al'ber %A A. I. Notik %T Geometric properties of Banach spaces and approximate methods of %J Doklady Akademii Nauk %D 1984 %P 1033-1037 %V 276 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1984_276_5_a0/ %G ru %F DAN_1984_276_5_a0