TY - JOUR AU - Ya. N. Fel'd TI - Diffraction of a scalar wave on a nonclosed surface with a Dirichlet boundary condition JO - Doklady Akademii Nauk PY - 1972 SP - 1321 EP - 1324 VL - 206 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1972_206_6_a13/ LA - ru ID - DAN_1972_206_6_a13 ER -