TY - JOUR AU - Ming Tao mtao@mail.ustc.edu.cn Zhixin Cheng czx@mail.ustc.edu.cn Jin Yan yanjin@mail.ust TI - Conservation laws I: viscosity solutions JO - Revista colombiana de matematicas PY - 2007 SP - 81 EP - 90 VL - 41 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RCM_2007_41_1_a5/ ID - RCM_2007_41_1_a5 ER -