%0 Journal Article %A A. P. Soldatov %T On the theory of singular integro-functional operators %J Differencialʹnye uravneniâ %D 1977 %P 140-154 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_1_a19/ %G ru %F DE_1977_13_1_a19