To cite package ‘rswipl’ in publications use:

  Gondan M (2026). _rswipl: Embed 'SWI'-'Prolog'_. R package version
  10.1.8, <https://github.com/mgondan/rswipl>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rswipl: Embed 'SWI'-'Prolog'},
    author = {Matthias Gondan},
    year = {2026},
    note = {R package version 10.1.8},
    url = {https://github.com/mgondan/rswipl},
  }