To cite package ‘IntCal’ in publications use:

Blaauw M (2022). IntCal: Radiocarbon Calibration Curves. R package version 0.3.1, https://CRAN.R-project.org/package=IntCal.

Corresponding BibTeX entry:

  @Manual{,
    title = {IntCal: Radiocarbon Calibration Curves},
    author = {Maarten Blaauw},
    year = {2022},
    note = {R package version 0.3.1},
    url = {https://CRAN.R-project.org/package=IntCal},
  }