Relaxation approximations and bounded variation estimates for some partial differential equations. Caicedo, Francisco; Lu, Yunguang; Supúlveda, Mauricio — 2002 Electronic Journal of Differential Equations (EJDE) [electronic only]
L 1 singular limit for relaxation and viscosity approximations of extended traffic flow models. Klingenberg, Christian; Lu, Yunguang; Zhao, Huijiang — 2003 Electronic Journal of Differential Equations (EJDE) [electronic only]