TY - JOUR AU - E. A. Nazarov TI - Modes of approach of trajectories toward a singular point JO - Differencialʹnye uravneniâ PY - 1968 SP - 1949 EP - 1955 VL - 4 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1968_4_11_a2/ LA - ru ID - DE_1968_4_11_a2 ER -