To cite package ‘splitpopsurv’ in publications use:

  Fukuda N (2026). _splitpopsurv: Split-Population (Cure /
  Mover-Stayer) Survival Models_. R package version 0.1.0,
  <https://github.com/nobifukuda/splitpopsurv>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {splitpopsurv: Split-Population (Cure / Mover-Stayer) Survival Models},
    author = {Nobutaka Fukuda},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/nobifukuda/splitpopsurv},
  }