TY - JOUR AU - A. V. Sokolov TI - An invariant test for the stability of a~mixed boundary value difference problem JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1974 VL - 29 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1974_29_6_a16/ LA - ru ID - RM_1974_29_6_a16 ER -