%0 Journal Article %A N. K. Karapetyants %A S. G. Samko %T Singular convolution operators with a discontinuous symbol %J Doklady Akademii Nauk %D 1975 %P 1260-1263 %V 221 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_221_6_a3/ %G ru %F DAN_1975_221_6_a3