%0 Journal Article %A I. V. Kamenev %T A criterion for the oscillation of solutions of second-order ordinary differential equations %J Matematičeskie zametki %D 1970 %P 773-776 %V 8 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1970_8_6_a9/ %G ru %F MZM_1970_8_6_a9