TY  - JOUR
AU  - V. I. Elkin
TI  - Classification of affine controllable systems with a phase space of dimension $n<4$
JO  - Doklady Akademii Nauk
PY  - 1988
SP  - 18
EP  - 20
VL  - 302
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1988_302_1_a2/
LA  - ru
ID  - DAN_1988_302_1_a2
ER  -