%0 Journal Article %A G. P. Kykin %A G. A. Noskov %A V. N. Remeslennikov %T Fourth Regional School on Theory of Manifolds of Algebraic Systems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1987 %V 42 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1987_42_2_a31/ %G ru %F RM_1987_42_2_a31