%0 Journal Article %A G. A. Shestopal %T Simple bases in closed classes of functions of the algebra of logic %J Doklady Akademii Nauk %D 1966 %P 1023-1026 %V 168 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_168_5_a13/ %G ru %F DAN_1966_168_5_a13