%0 Journal Article %A Yu. A. Klokov %T New solvability conditions for the Neumann problem for ordinary singular differential equations %J Differencialʹnye uravneniâ %D 2000 %P 1280-1281 %V 36 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2000_36_9_a14/ %G ru %F DE_2000_36_9_a14