HALEKOH, U.; HØJSGAARD, S. A Kenward-Roger Approximation and Parametric Bootstrap Methods for Tests in Linear Mixed Models – The R Package pbkrtest. Journal of Statistical Software, [S. l.], v. 59, n. 9, p. 1–32, 2014. DOI: 10.18637/jss.v059.i09. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v059i09. Acesso em: 19 apr. 2024.