TY - JOUR AU - V. M. Babich AU - D. B. Dement'ev AU - B. A. Samokish AU - V. P. Smyshlyaev TI - Scattering of a highfrequency wave by the vertex of an arbitrary cone. (Singular directions.) JO - Zapiski Nauchnykh Seminarov POMI PY - 2000 SP - 7 EP - 21 VL - 264 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2000_264_a0/ LA - ru ID - ZNSL_2000_264_a0 ER -