To cite package ‘flexrsurv’ in publications use:

Clerc-Urmès I, Grzebyk M (2024). flexrsurv: Flexible Relative Survival Analysis. R package version 2.0.18, https://CRAN.R-project.org/package=flexrsurv.

Corresponding BibTeX entry:

  @Manual{,
    title = {flexrsurv: Flexible Relative Survival Analysis},
    author = {Isabelle Clerc-Urmès and Michel Grzebyk},
    year = {2024},
    note = {R package version 2.0.18},
    url = {https://CRAN.R-project.org/package=flexrsurv},
  }