TY - JOUR AU - Klingenberg, Christian AU - Lu, Yunguang AU - Zhao, Huijiang TI - $L^1$ singular limit for relaxation and viscosity approximations of extended traffic flow models JO - Electronic Journal of Differential Equations PY - 2003 VL - 2003 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a199/ LA - en ID - EJDE_2003__2003__a199 ER -