TY - JOUR AU - V. B. Andreev TI - The convergence of difference schemes which approximate the second and third boundary value problems for elliptic equations JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1968 SP - 1218 EP - 1231 VL - 8 IS - 6 UR - http://geodesic.mathdoc.fr/item/ZVMMF_1968_8_6_a5/ LA - ru ID - ZVMMF_1968_8_6_a5 ER -