%0 Journal Article %A G. I. Shishkin %T A difference approximation of a singularly perturbed boundary-value problem for quasilinear elliptic equations degenerating into first-order equations %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1992 %P 550-566 %V 32 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1992_32_4_a4/ %G ru %F ZVMMF_1992_32_4_a4