To cite package ‘rstantools’ in publications use:

  Gabry J, Goodrich B, Lysy M, Johnson A (2024). _rstantools: Tools for
  Developing R Packages Interfacing with 'Stan'_. R package version
  2.4.0.9000, , <https://github.com/stan-dev/rstantools>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rstantools: Tools for Developing R Packages Interfacing with 'Stan'},
    author = {Jonah Gabry and Ben Goodrich and Martin Lysy and Andrew Johnson},
    year = {2024},
    note = {R package version 2.4.0.9000, },
    url = {https://github.com/stan-dev/rstantools},
  }