TY - JOUR AU - A. A. Kosov AU - E. I. Semenov AU - V. V. Tirskikh TI - On exact multidimensional solutions to a nonlinear system of fourth-order hyperbolic equations JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2021 SP - 77 EP - 86 VL - 24 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2021_24_2_a4/ LA - ru ID - SJIM_2021_24_2_a4 ER -