TY  - JOUR
AU  - G. S. Osipenko
TI  - Perturbation of invariant manifolds. III
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 818
EP  - 825
VL  - 23
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_5_a10/
LA  - ru
ID  - DE_1987_23_5_a10
ER  -