On Solving Lq-Penalized Regressions. - Tracy Zhou Wu; Yingyi Chu; Yan Yu (Adv. Decis. Sci., 2007)

Penalized spline estimation for functional coefficient regression models. - Yanrong Cao; Haiqun Lin; Tracy Zhou Wu; Yan Yu (Comput. Stat. Data Anal., 2010)

Single-index quantile regression. - Tracy Zhou Wu; Keming Yu; Yan Yu (J. Multivar. Anal., 2010)