TY - JOUR AU - Yu. A. Mitropol'skii AU - M. V. Shul'ga TI - Asymptotic solutions of a multidimensional nonlinear wave equation JO - Doklady Akademii Nauk PY - 1987 SP - 30 EP - 33 VL - 295 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1987_295_1_a4/ LA - ru ID - DAN_1987_295_1_a4 ER -