%0 Journal Article %A Liu, Tai-Ping %A Yang, Tong %T 𝐿₁ stability for 2×2 systems of hyperbolic conservation laws %J Journal of the American Mathematical Society %D 1999 %P 729-774 %V 12 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-99-00292-1/ %R 10.1090/S0894-0347-99-00292-1 %F 10_1090_S0894_0347_99_00292_1