To cite package ‘NCA’ in publications use:

Dul J (2026). NCA: Necessary Condition Analysis. R package version 5.0.1, https://CRAN.R-project.org/package=NCA.

Corresponding BibTeX entry:

  @Manual{,
    title = {NCA: Necessary Condition Analysis},
    author = {Jan Dul},
    year = {2026},
    note = {R package version 5.0.1},
    url = {https://CRAN.R-project.org/package=NCA},
  }