TY  - JOUR
AU  - V. L. Lubih
TI  - The existence of a local invariant surface in the absence of linear approximation
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 1410
EP  - 1418
VL  - 7
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_8_a7/
LA  - ru
ID  - DE_1971_7_8_a7
ER  -