@BOOK{rupp03, author = {Ruppert, D. and Wand, M. P. and Carroll, R. J.}, title = {Semiparametric Regression}, year = {2003}, publisher = {Cambridge University Press}, address = {New York} } @ARTICLE{Cante05, author = {Cantet, R. J. C. and Birchmeier, A. N. and Cayo, A. W. Canaza and Fioretti, C.}, pages = {2482--2494}, title = {Semiparametric animal models via penalized splines as alternatives to models with contemporary groups}, journal = {J. Anim. Sci.}, volume = {83}, number = {11}, year = {2005} }