To cite package ‘vitopack’ in publications use:

  Vít O (2026). _vitopack: Actuarial Helpers for Triangles, Exposures
  and Czech Birth Numbers_. R package version 0.1.1,
  <https://CRAN.R-project.org/package=vitopack>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {vitopack: Actuarial Helpers for Triangles, Exposures and Czech Birth
Numbers},
    author = {Ondřej Vít},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=vitopack},
  }