%0 Journal Article %A E. P. Dolzhenko %A E. A. Sevast'yanov %T Sign-sensitive approximations. A space of sign-sensitive weights. %J Doklady Akademii Nauk %D 1993 %P 686-689 %V 332 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1993_332_6_a2/ %G ru %F DAN_1993_332_6_a2