To cite xptr in publications use:

Lai R, Eddelbuettel D (2025). xptr: Manipulating External Pointers. doi:10.32614/CRAN.package.xptr. R package version 1.2.0.

Corresponding BibTeX entry:

  @Manual{,
    title = {{xptr}: Manipulating External Pointers},
    author = {Randy Lai and Dirk Eddelbuettel},
    year = {2025},
    note = {R package version 1.2.0},
    doi = {10.32614/CRAN.package.xptr},
  }