To cite package ‘gsMeanFreq’ in publications use:

  Lian Q, Martens MJ (2026). _gsMeanFreq: Group Sequential Clinical
  Trial Designs for Composite Endpoints_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=gsMeanFreq>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gsMeanFreq: Group Sequential Clinical Trial Designs for Composite Endpoints},
    author = {Qinghua Lian and Michael J Martens},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=gsMeanFreq},
  }