To cite package ‘cardx’ in publications use:

  Sjoberg D, Yogasekaram A, de la Rua E (2025). _cardx: Extra Analysis
  Results Data Utilities_. R package version 0.2.2.9012, ,
  <https://github.com/insightsengineering/cardx>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cardx: Extra Analysis Results Data Utilities},
    author = {Daniel D. Sjoberg and Abinaya Yogasekaram and Emily {de la Rua}},
    year = {2025},
    note = {R package version 0.2.2.9012, 
},
    url = {https://github.com/insightsengineering/cardx},
  }