TY  - JOUR
AU  - I. V. Kamenev
TI  - On Hartman's comparison theorem for second order linear equations
JO  - Differencialʹnye uravneniâ
PY  - 1975
SP  - 1136
EP  - 1137
VL  - 11
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1975_11_6_a18/
LA  - ru
ID  - DE_1975_11_6_a18
ER  -