TY  - JOUR
AU  - I. U. Bronshtein
TI  - Necessary conditions for the preservation of smooth invariant submanifolds
JO  - Differencialʹnye uravneniâ
PY  - 1986
SP  - 573
EP  - 581
VL  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1986_22_4_a1/
LA  - ru
ID  - DE_1986_22_4_a1
ER  -