To cite `qrcode` in publications please use:

Onkelinx T, Teh V (2022). qrcode: Generate QRcodes with R. Version 0.2.1. doi:10.5281/zenodo.5040088, https://thierryo.github.io/qrcode/.

Corresponding BibTeX entry:

  @Manual{,
    title = {qrcode: Generate QRcodes with R. Version 0.2.1},
    author = {Thierry Onkelinx and Victor Teh},
    year = {2022},
    url = {https://thierryo.github.io/qrcode/},
    abstract = {Create QRcode in R.},
    keywords = {two-dimensional barcode; matrix barcode},
    doi = {10.5281/zenodo.5040088},
  }