%0 Journal Article %A M. M. Khapaev %A G. V. Sholin %T Singularly perturbed systems containing singular manifolds %J Doklady Akademii Nauk %D 1986 %P 99-103 %V 287 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_287_1_a22/ %G ru %F DAN_1986_287_1_a22