TY - JOUR AU - N. J. Yurchuk TI - The method of energy inequalities in the investigation of some degenerate linear operator-differential equations JO - Differencialʹnye uravneniâ PY - 1978 SP - 2196 EP - 2211 VL - 14 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1978_14_12_a12/ LA - ru ID - DE_1978_14_12_a12 ER -