%0 Journal Article %A I. Jo %T Some applications of a theorem of S. Banach %J Doklady Akademii Nauk %D 1979 %P 1047-1049 %V 249 %N 5 %U http://geodesic.mathdoc.fr/item/DAN_1979_249_5_a4/ %G ru %F DAN_1979_249_5_a4