To cite package ‘dtreg’ in publications use:

  Lezhnina O, Prinz M, Stocker M (2025). _dtreg: Interact with Data
  Type Registries and Create Machine-Readable Data_. R package version
  1.1.1, <https://CRAN.R-project.org/package=dtreg>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {dtreg: Interact with Data Type Registries and Create Machine-Readable
Data},
    author = {Olga Lezhnina and Manuel Prinz and Markus Stocker},
    year = {2025},
    note = {R package version 1.1.1},
    url = {https://CRAN.R-project.org/package=dtreg},
  }