TY  - JOUR
AU  - N. N. Butenina
AU  - Z. G. Pavlyuchonok
AU  - V. P. Savel'ev
TI  - Qualitative methods for the global investigation of controllability regions on a plane
JO  - Differencialʹnye uravneniâ
PY  - 1995
SP  - 555
EP  - 568
VL  - 31
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1995_31_4_a0/
LA  - ru
ID  - DE_1995_31_4_a0
ER  -