%0 Journal Article %A V. I. Varshavskii %T On the complexity of networks with depth two formulated from threshold elements %J Doklady Akademii Nauk %D 1961 %P 1325-1328 %V 139 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_139_6_a13/ %G ru %F DAN_1961_139_6_a13