%0 Journal Article %A Ivan Yu. Polekhin %T A Topological--Analytical Method for Proving Averaging Theorems on an Infinite Time Interval in a Degenerate Case %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2023 %P 195-205 %V 322 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2023_322_a15/ %G ru %F TM_2023_322_a15