%0 Journal Article %A S. M. Sitnik %T Factorization and estimates of norms in weighted Lebesgue spaces %J Doklady Akademii Nauk %D 1991 %P 1326-1330 %V 320 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_320_6_a7/ %G ru %F DAN_1991_320_6_a7