To cite package ‘survstan’ in publications use:

  Demarqui F (2024). _survstan: Fitting Survival Regression Models via
  'Stan'_. R package version 0.0.7.1,
  <https://CRAN.R-project.org/package=survstan>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {survstan: Fitting Survival Regression Models via 'Stan'},
    author = {Fabio Demarqui},
    year = {2024},
    note = {R package version 0.0.7.1},
    url = {https://CRAN.R-project.org/package=survstan},
  }