%0 Journal Article %A N. V. Azbelev %A R. K. Ragimkhanov %A L. N. Fadeeva %T Integral equations with a discontinuous operator %J Differencialʹnye uravneniâ %D 1969 %P 862-873 %V 5 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1969_5_5_a7/ %G ru %F DE_1969_5_5_a7