To cite pbkrtest in publications use:
Halekoh U, Højsgaard S (2014). “A Kenward-Roger Approximation and Parametric Bootstrap Methods for Tests in Linear Mixed Models – The R Package pbkrtest.” Journal of Statistical Software, 59(9), 1–30. https://www.jstatsoft.org/v59/i09/.
Corresponding BibTeX entry:
@Article{,
title = {A Kenward-Roger Approximation and Parametric Bootstrap
Methods for Tests in Linear Mixed Models -- The {R} Package
{pbkrtest}},
author = {Ulrich Halekoh and Søren Højsgaard},
journal = {Journal of Statistical Software},
year = {2014},
volume = {59},
number = {9},
pages = {1--30},
url = {https://www.jstatsoft.org/v59/i09/},
}