%0 Journal Article %A M. E. Shirokov %T On properties of quantum channels related to their classical capacity %J Teoriâ veroâtnostej i ee primeneniâ %D 2007 %P 301-335 %V 52 %N 2 %U http://geodesic.mathdoc.fr/item/TVP_2007_52_2_a3/ %G ru %F TVP_2007_52_2_a3