%0 Journal Article %A A. Pedas %T Piecewise-polynomial approximation of the solution of weakly singular integral equations with discontinuous coefficients %J Differencialʹnye uravneniâ %D 1999 %P 1253-1261 %V 35 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1999_35_9_a11/ %G ru %F DE_1999_35_9_a11