%0 Journal Article %A Ming Tao mtao@mail.ustc.edu.cn Zhixin Cheng czx@mail.ustc.edu.cn Jin Yan yanjin@mail.ust %T Conservation laws I: viscosity solutions %J Revista colombiana de matematicas %D 2007 %P 81-90 %V 41 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RCM_2007_41_1_a5/ %F RCM_2007_41_1_a5