To cite package ‘checkLuhn’ in publications use:

Deacon A (2024). checkLuhn: Checks if a Number is Valid Using the Luhn Algorithm. R package version 1.1.0, https://github.com/adamjdeacon/checkluhn.

Corresponding BibTeX entry:

  @Manual{,
    title = {checkLuhn: Checks if a Number is Valid Using the Luhn
      Algorithm},
    author = {Adam Deacon},
    year = {2024},
    note = {R package version 1.1.0},
    url = {https://github.com/adamjdeacon/checkluhn},
  }