%0 Journal Article %A E. M. Dyn'kin %T On the smoothness of integrals of Cauchy type %J Doklady Akademii Nauk %D 1980 %P 794-797 %V 250 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_250_4_a5/ %G ru %F DAN_1980_250_4_a5