%0 Journal Article %A D. M. Shchepakin %T Reduction principle in the problem about stability under persistent disturbances for singularity perturbed systems %J Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ %D 2011 %P 258 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGU_2011_2_a29/ %G ru %F VSGU_2011_2_a29