To cite package 'WRS2' in publications use:

############################################################################### The main WRS2 article:

Mair, P., & Wilcox, R. R. (2019). Robust Statistical Methods in R Using the WRS2 PackageBehavior Research Methods, Forthcoming

Corresponding BibTeX entry:

  @Article{,
    title = {{Robust Statistical Methods in R Using the WRS2 Package}},
    author = {Patrick Mair and Rand Wilcox},
    year = {2019},
    journal = {{Behavior Research Methods}},
    note = {{Forthcoming}},
  }