%0 Journal Article %A L. I. Kononenko %T On the smoothness of slow surfaces of singularly perturbed systems %J Sibirskij žurnal industrialʹnoj matematiki %D 2002 %P 109-125 %V 5 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJIM_2002_5_2_a8/ %G ru %F SJIM_2002_5_2_a8