TY  - JOUR
AU  - A. V. Marinchuk
TI  - Qualitative investigation in the large of a certain second order system
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 2107
EP  - 2110
VL  - 7
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_11_a22/
LA  - ru
ID  - DE_1971_7_11_a22
ER  -