%0 Journal Article %A Tatsien Li Daqian Li %T Exact boundary observability for quasilinear hyperbolic systems %J ESAIM: Control, Optimisation and Calculus of Variations %D 2008 %P 759-766 %V 14 %N 4 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/cocv:2008007/ %R 10.1051/cocv:2008007 %G en %F COCV_2008__14_4_759_0