To cite package ‘etnservice’ in publications use:

  Huybrechts P, Desmet P (2026). _etnservice: Serve Data from the
  European Tracking Network_. R package version 0.7.1.9000,
  <https://github.com/inbo/etnservice>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {etnservice: Serve Data from the European Tracking Network},
    author = {Pieter Huybrechts and Peter Desmet},
    year = {2026},
    note = {R package version 0.7.1.9000},
    url = {https://github.com/inbo/etnservice},
  }