TY - JOUR AU - A. A. Kosov AU - E. I. Semenov AU - V. V. Tirskikh TI - On exact multidimensional solutions of a nonlinear system of first order partial differential equations JO - The Bulletin of Irkutsk State University. Series Mathematics PY - 2019 SP - 53 EP - 68 VL - 28 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IIGUM_2019_28_a3/ LA - en ID - IIGUM_2019_28_a3 ER -