TY  - JOUR
AU  - V. E. Chernyshev
TI  - Perturbation of heteroclinic cycles that contain saddle-foci
JO  - Differencialʹnye uravneniâ
PY  - 1997
SP  - 712
EP  - 713
VL  - 33
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1997_33_5_a24/
LA  - ru
ID  - DE_1997_33_5_a24
ER  -