TY - JOUR AU - A. S. Rudnitskii AU - A. D. Titov AU - A. P. Khapalyuk TI - A boundary value problem for the wave equation in a tetrahedral domain JO - Differencialʹnye uravneniâ PY - 1985 SP - 2181 EP - 2184 VL - 21 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1985_21_12_a25/ LA - ru ID - DE_1985_21_12_a25 ER -