篇号：1
题名：Spline Smoothing in a Partial Linear model
作者：Heckman
期刊全称或缩写,年份，卷（期），起止页码：Journal of the Royal Statistical Society,  Vol. 48, No. 2, 1986
电子链接:http://www.jstor.org/pss/2345719

篇号：2
题名：Kernel Smoothing in Partial Linear models
作者：Paul Speckman
期刊全称或缩写,年份，卷（期），起止页码：Journal of the Royal Statistical Society, Vol. 50, No. 3 (1988), pp. 413-436
电子链接:http://www.jstor.org/pss/2345705