%0 Journal Article %A I. O. Sokolov %T Upper bounds on the complexity of the realization of characteristic functions of group codes by switching circuits without zero chains %J Diskretnaya Matematika %D 1995 %P 110-122 %V 7 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_1995_7_1_a7/ %G ru %F DM_1995_7_1_a7