To cite rngWELL in publications use:

Christophe D and Petr S (2015). rngWELL: WELL generators. R package version 0.10-4.

Corresponding BibTeX entry:

  @Manual{,
    title = {rngWELL: WELL generators},
    author = {Dutang Christophe and Savicky Petr},
    year = {2015},
    note = {R package version 0.10-4},
  }