TY  - JOUR
AU  - I. V. Kamenev
TI  - An integral comparison theorem for certain systems of linear differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1972
SP  - 778
EP  - 784
VL  - 8
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1972_8_5_a4/
LA  - ru
ID  - DE_1972_8_5_a4
ER  -