%0 Journal Article %A A. I. Shindyapin %T A boundary value problem for a singular equation %J Differencialʹnye uravneniâ %D 1984 %P 450-455 %V 20 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_3_a11/ %G ru %F DE_1984_20_3_a11