%0 Journal Article %A V. I. Ivanov %T Lower bound on constant in Jackson inequality in different $L_p$-norms %J Matematičeskie zametki %D 1992 %P 48-62 %V 52 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1992_52_3_a5/ %G ru %F MZM_1992_52_3_a5