To cite package ‘cards’ in publications use:

  Sjoberg D, Krouse B, de la Rua E (2025). _cards: Analysis Results
  Data_. R package version 0.4.0.9017, ,
  <https://github.com/insightsengineering/cards>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cards: Analysis Results Data},
    author = {Daniel D. Sjoberg and Becca Krouse and Emily {de la Rua}},
    year = {2025},
    note = {R package version 0.4.0.9017, 
},
    url = {https://github.com/insightsengineering/cards},
  }