%0 Journal Article %A S. Z. Levendorskii %T Algebras of pseudodifferential operators with discontinuous symbols %J Doklady Akademii Nauk %D 1979 %P 777-779 %V 248 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_248_4_a0/ %G ru %F DAN_1979_248_4_a0