To cite package ‘OptOTrials’ in publications use:

Park Y, Wang Y, Xu Z (2026). OptOTrials: Optimal Two-Stage Designs for Ordered Categorical Outcomes. R package version 1.1.0, https://CRAN.R-project.org/package=OptOTrials.

Corresponding BibTeX entry:

  @Manual{,
    title = {OptOTrials: Optimal Two-Stage Designs for Ordered
      Categorical Outcomes},
    author = {Yeonhee Park and Yudi Wang and Zhanpeng Xu},
    year = {2026},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=OptOTrials},
  }