%0 Journal Article %A G. I. Shishkin %T Grid approximations of singularly perturbed systems for parabolic convection-diffusion equations with counterflow %J Sibirskij žurnal vyčislitelʹnoj matematiki %D 1998 %P 281-297 %V 1 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJVM_1998_1_3_a6/ %G en %F SJVM_1998_1_3_a6