%0 Journal Article %A S. A. Nazarov %A B. A. Plamenevskii %T Selfadjoint elliptic problems: scattering and polarization operators on the edges of the boundary %J Algebra i analiz %D 1994 %P 157-186 %V 6 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_1994_6_4_a5/ %G ru %F AA_1994_6_4_a5