%0 Journal Article %A K. I. Chernyshov %T Asymptotic expansions of solutions of the linear singularly perturbed differential equations %J Zapiski Nauchnykh Seminarov POMI %D 1991 %P 161-178 %V 195 %U http://geodesic.mathdoc.fr/item/ZNSL_1991_195_a14/ %G ru %F ZNSL_1991_195_a14