%0 Journal Article %A V. S. Pilidi %T Uniform invertibility of regular approximations of one-dimensional singular integral operators with noncompact perturbations %J Differencialʹnye uravneniâ %D 1990 %P 2127-2136 %V 26 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_12_a12/ %G ru %F DE_1990_26_12_a12