To cite package ‘PWEALL’ in publications use:

  Luo X (2023). _PWEALL: Design and Monitoring of Survival Trials
  Accounting for Complex Situations_. R package version 1.3.0.1,
  <https://CRAN.R-project.org/package=PWEALL>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PWEALL: Design and Monitoring of Survival Trials Accounting for Complex
Situations},
    author = {Xiaodong Luo},
    year = {2023},
    note = {R package version 1.3.0.1},
    url = {https://CRAN.R-project.org/package=PWEALL},
  }