%0 Journal Article %A V. M. Glushkov %A Yu. I. Merzlyakov %T Seventh All-Union Symposium on Group Theory %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1981 %V 36 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1981_36_2_a27/ %G ru %F RM_1981_36_2_a27