%0 Journal Article %A K. A. Zykov %T Realization of some systems of Boolean functions by schemes consisting of two-input elements %J Diskretnaya Matematika %D 1993 %P 125-149 %V 5 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_1993_5_3_a11/ %G ru %F DM_1993_5_3_a11