TY - JOUR AU - D. M. Grobman TI - Analogy between systems of differential equations near a singular point JO - Doklady Akademii Nauk PY - 1966 SP - 15 EP - 18 VL - 166 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1966_166_1_a2/ LA - ru ID - DAN_1966_166_1_a2 ER -