%0 Journal Article %A V. G. Sushko %T Asymptotic representations of the solutions of some singularly perturbed problems for mixed type equations %J Fundamentalʹnaâ i prikladnaâ matematika %D 1997 %P 579-586 %V 3 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_1997_3_2_a12/ %G ru %F FPM_1997_3_2_a12