%0 Journal Article %T VIII All-Union conference on problems of theoretical cybernetics %J Diskretnaya Matematika %D 1989 %P 159 %V 1 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_1989_1_2_a15/ %G ru %F DM_1989_1_2_a15