The PLM Procedure

Asuncion, A., and Newman, D. J. (2007). “UCI Machine Learning Repository.” http://archive.ics.uci.edu/ml/.

Kenward, M. G., and Roger, J. H. (1997). “Small Sample Inference for Fixed Effects from Restricted Maximum Likelihood.” Biometrics 53:983–997.

McCullagh, P., and Nelder, J. A. (1989). Generalized Linear Models. 2nd ed. London: Chapman & Hall.

Silvapulle, M. J., and Sen, P. K. (2004). Constrained Statistical Inference: Order, Inequality, and Shape Constraints. New York: John Wiley & Sons.

Weisberg, S. (1985). Applied Linear Regression. 2nd ed. New York: John Wiley & Sons.