Authors: Liu, Anna Tong, Tiejun Wang, Yuedong

Citation: Liu, Anna et al., Smoothing spline estimation of variance functions, Journal of computational and graphical statistics , 16(2), 2007, pp. 312-329

Authors: Tong, Tiejun Wang, Yuedong

Citation: Tong, Tiejun et Wang, Yuedong, Estimating residual variance in nonparametric regression using least squares, Biometrika , 92(4), 2005, pp. 821-830