TY  - JOUR
AU  - V. I. Zubov
TI  - Stability of integral manifolds
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 1720
EP  - 1722
VL  - 13
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_9_a19/
LA  - ru
ID  - DE_1977_13_9_a19
ER  -