%0 Journal Article %A A. A. Bolotov %T On problems of reducibility and expressibility for homogeneous structures with inputs and outputs %J Doklady Akademii Nauk %D 1980 %P 14-16 %V 254 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_254_1_a1/ %G ru %F DAN_1980_254_1_a1