%0 Journal Article %A L. I. Sazonov %T $C^*$-algebras of bisingular operators with discontinuous coefficients %J Izvestiya. Mathematics %D 1999 %P 367-399 %V 63 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1999_63_2_a4/ %G en %F IM2_1999_63_2_a4