%0 Journal Article %A B. I. Efendiev %T Neumann problem for an ordinary second-order differential equation with a distributed differentiation operator %J News of the Kabardin-Balkar scientific center of RAS %D 2019 %P 30-37 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IZKAB_2019_5_a3/ %G ru %F IZKAB_2019_5_a3