%0 Journal Article %A M. E. Drakhlin %T A~comparison principle for differential equations of the second order on an infinite interval %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1967 %P 26-30 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1967_9_a2/ %G ru %F IVM_1967_9_a2