%0 Journal Article %A V. E. Maiorov %T Kolmogorov's $(n,\delta)$-widths of spaces of smooth functions %J Sbornik. Mathematics %D 1994 %P 265-279 %V 79 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1994_79_2_a1/ %G en %F SM_1994_79_2_a1