Duong, T. and Wand, M.P. (2006). feature 1.4. R package.
cran.r-project.org

Ormerod, J.T. and Wand, M.P. (2006). LowRankQP 1.0. R package.
cran.r-project.org

Wand, M.P., Coull, B.A., French, J.L., Ganguli, B., Kammann, E.E., Staudenmayer, J. and Zanobetti, A. (2005). SemiPar 1.0. R package.
[ Package web-site]

Wand, M.P. and Ripley, B.D. (2004). KernSmooth 2.22. R package.
cran.r-project.org