%0 Journal Article %A S. A. Hosseiny Matikolai %T On the structure of Wiener--Hopf operator corresponding to anisotropic boundary value problem, connected with Helmholtz--Schr\"{o}dinger еquation with the boundary conditions of the first and second type %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2011 %P 22-26 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2011_2_a3/ %G en %F UZERU_2011_2_a3