Hosseiny Matikolai S. ON THE STRUCTURE OF WIENER–HOPF OPERATOR CORRESPONDING TO ANISOTROPIC BOUNDARY VALUE PROBLEM, CONNECTED WITH HELMHOLTZ–SCHRÖDINGER ЕQUATION WITH THE BOUNDARY CONDITIONS OF THE FIRST AND SECOND TYPE. Proc. YSU A: Phys. Math. Sci. [Internet]. 2011 Apr. 28 [cited 2024 Nov. 22];45(2 (225):22-6. Available from: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol45_no2_2011_pp022-026