TY  - JOUR
AU  - A. V. Skitovich
TI  - The problem of center in the case of a complex stationary point that is separable into simple saddle points
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 1814
EP  - 1823
VL  - 14
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_10_a10/
LA  - ru
ID  - DE_1978_14_10_a10
ER  -