TY - JOUR AU - V. V. Sokolov AU - S. Ya. Startsev TI - Symmetries of nonlinear hyperbolic systems of the~Toda chain type JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2008 SP - 344 EP - 355 VL - 155 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2008_155_2_a12/ LA - ru ID - TMF_2008_155_2_a12 ER -