%0 Journal Article %A A. F. Matveev %T Construction of approximate solutions of singular integral %J Doklady Akademii Nauk %D 1989 %P 1046-1050 %V 307 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_307_5_a4/ %G ru %F DAN_1989_307_5_a4