Mason, Fabio, Eva Cantoni, and Paolo Ghisletta. “Parametric and Semi-Parametric Bootstrap-Based Confidence Intervals for Robust Linear Mixed Models”. Methodology 17, no. 4 (December 17, 2021): 271-295. Accessed April 26, 2024. https://meth.psychopen.eu/index.php/meth/article/view/6607.