To cite package ‘bbk’ in publications use:

  Mücke M (2026). _bbk: Client for Central Bank APIs_. R package
  version 0.11.0, <https://CRAN.R-project.org/package=bbk>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {bbk: Client for Central Bank APIs},
    author = {Maximilian Mücke},
    year = {2026},
    note = {R package version 0.11.0},
    url = {https://CRAN.R-project.org/package=bbk},
  }