%0 Journal Article %A G. I. Shishkin %T Grid approximation of singularly perturbed equations with convective terms in the case of mixed boundary conditions %J Differencialʹnye uravneniâ %D 1996 %P 689-701 %V 32 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1996_32_5_a15/ %G ru %F DE_1996_32_5_a15