To cite package ‘NNS’ in publications use:

  Viole F (2026). _NNS: Nonlinear Nonparametric Statistics_. R package
  version 13.0, <https://CRAN.R-project.org/package=NNS>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {NNS: Nonlinear Nonparametric Statistics},
    author = {Fred Viole},
    year = {2026},
    note = {R package version 13.0},
    url = {https://CRAN.R-project.org/package=NNS},
  }