TY - JOUR AU - N. Ya. Kirpichnikova AU - M. M. Popov TI - Ray method applied to the plane wave diffraction by ``thin'' cone with small angle at the apex JO - Zapiski Nauchnykh Seminarov POMI PY - 2012 SP - 49 EP - 54 VL - 409 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2012_409_a3/ LA - ru ID - ZNSL_2012_409_a3 ER -