TY - JOUR AU - G. I. Shishkin TI - Grid approximation of a singularly perturbed boundary-value problem for a quasi-linear elliptic equation in the completely degenerate case JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1991 SP - 1808 EP - 1825 VL - 31 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1991_31_12_a4/ LA - ru ID - ZVMMF_1991_31_12_a4 ER -