%0 Journal Article %A A. S. Schwarz %T On the homotopic topology of Banach spaces %J Doklady Akademii Nauk %D 1964 %P 61-63 %V 154 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_154_1_a15/ %G ru %F DAN_1964_154_1_a15