%0 Journal Article %A Yu. M. Ryabukhin %T On the theory of the lower nil-radical of rings %J Algebra i logika %D 1967 %P 83-92 %V 6 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1967_6_4_a9/ %G ru %F AL_1967_6_4_a9