To cite package ‘BPrinStratTTE’ in publications use:

  Stock C, Torrini E (2024). _BPrinStratTTE: Causal Effects in
  Principal Strata Defined by Antidrug Antibodies_. R package version
  0.0.7, <https://CRAN.R-project.org/package=BPrinStratTTE>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {BPrinStratTTE: Causal Effects in Principal Strata Defined by Antidrug
Antibodies},
    author = {Christian Stock and Emma Torrini},
    year = {2024},
    note = {R package version 0.0.7},
    url = {https://CRAN.R-project.org/package=BPrinStratTTE},
  }