%0 Journal Article %A V. V. Savin %T On a mapping of a ball in space %J Doklady Akademii Nauk %D 1974 %P 1328-1329 %V 219 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_219_6_a13/ %G ru %F DAN_1974_219_6_a13