TY - JOUR AU - V. I. Lebedev TI - Method of orthogonal projections for a finite difference analogue of a system of equations JO - Doklady Akademii Nauk PY - 1957 SP - 1206 EP - 1209 VL - 113 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1957_113_6_a4/ LA - ru ID - DAN_1957_113_6_a4 ER -