To cite package ‘mathml’ in publications use:

  Gondan M, Alfarone I (2026). _mathml: Translate R Expressions to
  'MathML' and 'LaTeX'/'MathJax'_. R package version 1.9,
  <https://CRAN.R-project.org/package=mathml>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mathml: Translate R Expressions to 'MathML' and 'LaTeX'/'MathJax'},
    author = {Matthias Gondan and Irene Alfarone},
    year = {2026},
    note = {R package version 1.9},
    url = {https://CRAN.R-project.org/package=mathml},
  }