%0 Journal Article %A E. M. Skorikov %T The information Kolmogorov width and some exact inequalities between widths %J Izvestiya. Mathematics %D 2007 %P 603-627 %V 71 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2007_71_3_a7/ %G en %F IM2_2007_71_3_a7