TY  - JOUR
AU  - S. V. Emel'yanov
AU  - S. K. Korovin
AU  - S. V. Nikitin
TI  - Criteria for controllability of two-dimensional nonlinear systems
JO  - Doklady Akademii Nauk
PY  - 1987
SP  - 1310
EP  - 1314
VL  - 294
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1987_294_6_a5/
LA  - ru
ID  - DAN_1987_294_6_a5
ER  -