%0 Journal Article %A M. M. Ad'yutov %A Yu. A. Klokov %T An initial value problem for second-order ordinary differential equations with singularities %J Differencialʹnye uravneniâ %D 1989 %P 1268-1270 %V 25 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_7_a23/ %G ru %F DE_1989_25_7_a23