To cite package ‘S4Cartographer’ in publications use:

  Thodberg M (2026). _S4Cartographer: Visualize S4 class inheritance
  across R/Bioconductor packages_. R package version 0.99.3,
  <https://bioconductor.org/packages/S4Cartographer>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {S4Cartographer: Visualize S4 class inheritance across R/Bioconductor packages},
    author = {Malte Thodberg},
    year = {2026},
    note = {R package version 0.99.3},
    url = {https://bioconductor.org/packages/S4Cartographer},
  }