To cite package ‘varImp’ in publications use:

Probst P (2021). varImp: RF Variable Importance for Arbitrary Measures. R package version 0.4, https://github.com/philipppro/varimp.

Corresponding BibTeX entry:

  @Manual{,
    title = {varImp: RF Variable Importance for Arbitrary Measures},
    author = {Philipp Probst},
    year = {2021},
    note = {R package version 0.4},
    url = {https://github.com/philipppro/varimp},
  }