%0 Journal Article %A N. L. Vasilevskii %T On the theory of symbols for Banach algebras of operators that generalize algebras of singular integral operators %J Differencialʹnye uravneniâ %D 1981 %P 678-688 %V 17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_4_a12/ %G ru %F DE_1981_17_4_a12