@article {Crai:Rupp:like:2004,
	title = {Likelihood Ratio Tests in Linear Mixed Models with One Variance Component},
	journal = {Journal of the Royal Statistical Society, Series B: Statistical Methodology},
	volume = {66},
	number = {1},
	year = {2004},
	pages = {165{\textendash}185},
	keywords = {Degrees of freedom, Non-regular problems, penalized splines},
	author = {Crainiceanu, C and Ruppert, D.}
}
@article {Crai:Rupp:rest:2004,
	title = {Restricted Likelihood Ratio Tests in Nonparametric Longitudinal Models},
	journal = {Statistica Sinica},
	volume = {14},
	number = {3},
	year = {2004},
	pages = {713{\textendash}729},
	keywords = {Bootstrap, linear mixed models, non-standard asymptotics, penalized splines, subject-specific curves, Variance components},
	author = {Crainiceanu, C and Ruppert, D.}
}
