%0 Journal Article %A G. È. Abduragimov %T On the existence of a positive solution to a boundary-value problem for a nonlinear second-order functional differential equation %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 2023 %P 3-9 %V 221 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_2023_221_a0/ %G ru %F INTO_2023_221_a0