TY  - JOUR
AU  - D. V. Izyumova
AU  - J. D. Mirzov
TI  - The oscillation and the disconjugacy of the solutions of nonlinear differential systems
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 1187
EP  - 1193
VL  - 12
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_7_a4/
LA  - ru
ID  - DE_1976_12_7_a4
ER  -