TY - JOUR AU - S. A. Nazarov AU - B. A. Plamenevskii TI - Selfadjoint elliptic problems: scattering and polarization operators on the edges of the boundary JO - Algebra i analiz PY - 1994 SP - 157 EP - 186 VL - 6 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_1994_6_4_a5/ LA - ru ID - AA_1994_6_4_a5 ER -