TY  - JOUR
AU  - D. S. Ushkho
TI  - Qualitative investigation of a system with three centers
JO  - Differencialʹnye uravneniâ
PY  - 1984
SP  - 797
EP  - 801
VL  - 20
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1984_20_5_a6/
LA  - ru
ID  - DE_1984_20_5_a6
ER  -