Lüpsen, Haiko. “Generalizations of the Tests by Kruskal-Wallis, Friedman and Van Der Waerden for Split-Plot Designs”. Austrian Journal of Statistics 52, no. 5 (September 11, 2023): 101–130. Accessed February 24, 2024. https://ajs.or.at/index.php/ajs/article/view/1545.