To cite package ‘rfsrs’ in publications use:

Longros C (2026). rfsrs: R Bindings for FSRS Spaced Repetition Algorithm. R package version 0.3.2, https://github.com/open-spaced-repetition/r-fsrs.

Corresponding BibTeX entry:

  @Manual{,
    title = {rfsrs: R Bindings for FSRS Spaced Repetition Algorithm},
    author = {Christos Longros},
    year = {2026},
    note = {R package version 0.3.2},
    url = {https://github.com/open-spaced-repetition/r-fsrs},
  }