%0 Journal Article %A Dafermos, C. M. %A Geng, X. %T Generalized characteristics uniqueness and regularity of solutions in a hyperbolic system of conservation laws %J Annales de l'I.H.P. Analyse non linéaire %D 1991 %P 231-269 %V 8 %N 3-4 %I Gauthier-Villars %U http://archive.numdam.org/item/AIHPC_1991__8_3-4_231_0/ %G en %F AIHPC_1991__8_3-4_231_0