To cite package ‘sumup’ in publications use:

  Moonen - van Loon J (2026). _sumup: Utilizing Automated Text Analysis
  to Support Interpretation of Narrative Feedback_. R package version
  1.0.2.9000, <https://github.com/jmoonen/sumup>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sumup: Utilizing Automated Text Analysis to Support Interpretation of
Narrative Feedback},
    author = {Joyce {Moonen - van Loon}},
    year = {2026},
    note = {R package version 1.0.2.9000},
    url = {https://github.com/jmoonen/sumup},
  }