To cite package ‘coxphm’ in publications use:

  Chung Y (2025). _coxphm: Time-to-Event Data Analysis with Missing
  Survival Times_. R package version 0.2.1,
  <https://CRAN.R-project.org/package=coxphm>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {coxphm: Time-to-Event Data Analysis with Missing Survival Times},
    author = {Yunro Chung},
    year = {2025},
    note = {R package version 0.2.1},
    url = {https://CRAN.R-project.org/package=coxphm},
  }