To cite package ‘cxhull’ in publications use:

  Laurent S (2023). _cxhull: Convex Hull_. R package version 0.7.4,
  <https://github.com/stla/cxhull>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cxhull: Convex Hull},
    author = {Stéphane Laurent},
    year = {2023},
    note = {R package version 0.7.4},
    url = {https://github.com/stla/cxhull},
  }