%0 Journal Article %A S. V. Konyagin %T Deviation of elements of a~Banach space from a~system of subspaces %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2014 %P 212-215 %V 284 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2014_284_a13/ %G ru %F TM_2014_284_a13