To cite package ‘fastreg’ in publications use:

Brødbæk S, Johnston L (2026). fastreg: Fast Conversion and Querying of Danish Registers with 'Parquet'. R package version 0.15.3, https://github.com/dp-next/fastreg.

Corresponding BibTeX entry:

  @Manual{,
    title = {fastreg: Fast Conversion and Querying of Danish Registers
      with 'Parquet'},
    author = {Signe Kirk Brødbæk and Luke Johnston},
    year = {2026},
    note = {R package version 0.15.3},
    url = {https://github.com/dp-next/fastreg},
  }