%0 Journal Article %A Yu. I. Kifer %T Some results concerning small stochastic perturbations of dynamical systems. %J Teoriâ veroâtnostej i ee primeneniâ %D 1974 %P 514-532 %V 19 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1974_19_3_a4/ %G ru %F TVP_1974_19_3_a4