%0 Journal Article %A V. V. Petrov %A A. S. Uskov %T Capacities of information systems with feedback and internal noise %J Doklady Akademii Nauk %D 1970 %P 1029-1031 %V 194 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_194_5_a10/ %G ru %F DAN_1970_194_5_a10