To cite package ‘hicp’ in publications use:

  Weinand S (2024). _hicp: Harmonised Index of Consumer Prices_. R
  package version 0.6.1, <https://CRAN.R-project.org/package=hicp>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {hicp: Harmonised Index of Consumer Prices},
    author = {Sebastian Weinand},
    year = {2024},
    note = {R package version 0.6.1},
    url = {https://CRAN.R-project.org/package=hicp},
  }