TY - JOUR AU - S. V. Emel'yanov AU - S. K. Korovin AU - S. V. Nikitin TI - Classification of singularities and criteria for the controllability of bilinear systems on the plane JO - Doklady Akademii Nauk PY - 1987 SP - 42 EP - 46 VL - 295 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1987_295_1_a7/ LA - ru ID - DAN_1987_295_1_a7 ER -