%0 Journal Article %A A. V. Iltyakov %T Lattice of subvarieties of a variety of two-step solvable %J Algebra i logika %D 1982 %P 170-177 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1982_21_2_a4/ %G ru %F AL_1982_21_2_a4