TY - JOUR AU - A. Toraev TI - Oscillation and nonoscillation of the solutions of elliptic equations JO - Differencialʹnye uravneniâ PY - 1986 SP - 1424 EP - 1435 VL - 22 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1986_22_8_a14/ LA - ru ID - DE_1986_22_8_a14 ER -