TY - JOUR AU - A. E. Merzon TI - A general boundary value problem for the Helmholtz equation in the plane angle JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1977 VL - 32 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1977_32_2_a13/ LA - ru ID - RM_1977_32_2_a13 ER -