%0 Journal Article %A N. L. Vasilevskii %T On a~class of singular integral operators with kernels of polar-logarithmic type %J Izvestiya. Mathematics %D 1976 %P 127-143 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1976_10_1_a7/ %G en %F IM2_1976_10_1_a7