Yang, L., Park, B. U., Xue, L., Härdle, W. K., & Härdle, W. (2005). Estimation and testing for varying coefficients in additive models with marginal integration. SFB 649, Economic Risk.MLA Citation
Yang, Lijian, et al. Estimation and Testing for Varying Coefficients in Additive Models With Marginal Integration. SFB 649, Economic Risk, 2005.