%0 Journal Article %A G. N. Povarov %T The qualitative analysis of electrical systems with finite conductivity, using the theory of cumulative networks %J Doklady Akademii Nauk %D 1961 %P 308-310 %V 136 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_136_2_a13/ %G ru %F DAN_1961_136_2_a13