Noguchi, Kimihiro, Yulia R. Gel, Edgar Brunner, and Frank Konietschke. “NparLD: An R Software Package for the Nonparametric Analysis of Longitudinal Data in Factorial Experiments”. Journal of Statistical Software 50, no. 12 (September 18, 2012): 1–23. Accessed April 16, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v050i12.