To cite package ‘xmlwriter’ in publications use:

  de Jonge E (2025). _xmlwriter: Fast and Elegant XML Generation_. R
  package version 0.1.1.9000, <https://github.com/edwindj/xmlwriter>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {xmlwriter: Fast and Elegant XML Generation},
    author = {Edwin {de Jonge}},
    year = {2025},
    note = {R package version 0.1.1.9000},
    url = {https://github.com/edwindj/xmlwriter},
  }