TY  - JOUR
AU  - I. V. Kamenev
TI  - An integral comparison and the nonoscillatory property of solutions of second order linear systems
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 1136
EP  - 1139
VL  - 14
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_6_a21/
LA  - ru
ID  - DE_1978_14_6_a21
ER  -