%0 Journal Article %A R. L. Dobrushin %T The Asymptotic Optimum Properties of Group and Systematic Codes for Some Channels %J Teoriâ veroâtnostej i ee primeneniâ %D 1963 %P 52-66 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1963_8_1_a2/ %G ru %F TVP_1963_8_1_a2