To cite package ‘trialr’ in publications use:

  Brock K (2023). _trialr: Clinical Trial Designs in 'rstan'_. R
  package version 0.1.6, <https://CRAN.R-project.org/package=trialr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {trialr: Clinical Trial Designs in 'rstan'},
    author = {Kristian Brock},
    year = {2023},
    note = {R package version 0.1.6},
    url = {https://CRAN.R-project.org/package=trialr},
  }