TY  - JOUR
AU  - V. P. Nozdracheva
TI  - Existence of tangential $O$-curves of an algebroid system of differential equations in some degenerate cases
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 1059
EP  - 1062
VL  - 25
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_6_a26/
LA  - ru
ID  - DE_1989_25_6_a26
ER  -