To cite package ‘visaOTR’ in publications use:

  Zhan Z, Zhang J (2022). _visaOTR: Valid Improved Sparsity A-Learning
  for Optimal Treatment Decision_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=visaOTR>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {visaOTR: Valid Improved Sparsity A-Learning for Optimal Treatment
Decision},
    author = {Zishu Zhan and Jingxiao Zhang},
    year = {2022},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=visaOTR},
  }