%0 Journal Article %A R. K. Ragimkhanov %T A fixed point method in certain boundary value problems for ordinary differential equations with discontinuous right hand side %J Differencialʹnye uravneniâ %D 1973 %P 1537-1539 %V 9 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_8_a21/ %G ru %F DE_1973_9_8_a21