Konietschke, F., Placzek, M., Schaarschmidt, F. and Hothorn, L. A. (2015) “nparcomp: An R Software Package for Nonparametric Multiple Comparisons and Simultaneous Confidence Intervals”, Journal of Statistical Software, 64(9), pp. 1–17. doi: 10.18637/jss.v064.i09.