To cite package ‘rsgl’ in publications use:

  Chapman J (2026). _rsgl: An Implementation of the 'SGL' Graphics
  Language_. R package version 0.1.0.9000,
  <https://sgl-projects.github.io/rsgl/>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rsgl: An Implementation of the '{SGL}' Graphics Language},
    author = {Jon Chapman},
    year = {2026},
    note = {R package version 0.1.0.9000},
    url = {https://sgl-projects.github.io/rsgl/},
  }

  Jon Chapman (2025) SGL: A Structured Graphics Language.
  arXiv:2505.14690 [cs.PL]. https://arxiv.org/abs/2505.14690

A BibTeX entry for LaTeX users is

  @Misc{,
    title = {{SGL}: A Structured Graphics Language},
    author = {Jon Chapman},
    year = {2025},
    eprint = {2505.14690},
    archiveprefix = {arXiv},
    primaryclass = {cs.PL},
    url = {https://arxiv.org/abs/2505.14690},
  }