To cite package ‘ifctools’ in publications use:

Braglia L (2023). ifctools: Italian Fiscal Code ('Codice Fiscale') Utilities. R package version 0.3.6, https://github.com/lbraglia/ifctools.

Corresponding BibTeX entry:

  @Manual{,
    title = {ifctools: Italian Fiscal Code ('Codice Fiscale')
      Utilities},
    author = {Luca Braglia},
    year = {2023},
    note = {R package version 0.3.6},
    url = {https://github.com/lbraglia/ifctools},
  }