To cite package ‘volker’ in publications use:

Jünger J, Kotthoff H (2026). volker: High-Level Functions for Tabulating, Charting and Reporting Survey Data. R package version 3.3.1.9000, https://github.com/strohne/volker.

Corresponding BibTeX entry:

  @Manual{,
    title = {volker: High-Level Functions for Tabulating, Charting and
      Reporting Survey Data},
    author = {Jakob Jünger and Henrieke Kotthoff},
    year = {2026},
    note = {R package version 3.3.1.9000},
    url = {https://github.com/strohne/volker},
  }