To cite package ‘c403’ in publications use:

Zeileis A, Umlauf N, Stauffer R (2026). c403: Exam Tools for Department of Statistics (c403), Uni Innsbruck. R package version 0.9-7, https://codeberg.org/zeileis/c403.

Corresponding BibTeX entry:

  @Manual{,
    title = {c403: Exam Tools for Department of Statistics (c403), Uni
      Innsbruck},
    author = {Achim Zeileis and Nikolaus Umlauf and Reto Stauffer},
    year = {2026},
    note = {R package version 0.9-7},
    url = {https://codeberg.org/zeileis/c403},
  }