TY - JOUR AU - O. A. Liskovets TI - The hyperplane method in non-stationary problems with a self-conjugate operator JO - Differencialʹnye uravneniâ PY - 1965 SP - 255 EP - 259 VL - 1 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1965_1_2_a15/ LA - ru ID - DE_1965_1_2_a15 ER -