%0 Journal Article %A G. E. Abduragimov %T On the existence of a positive solution to a boundary-value problem for a second-order nonlinear ordinary differential equation %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 2021 %P 3-6 %V 199 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_2021_199_a0/ %G ru %F INTO_2021_199_a0