To cite package ‘gdx’ in publications use:

  Dietrich J, Giannousakis A, Bonsch M (2024). _gdx: Interface package
  for GDX files in R_. doi:10.5281/zenodo.1158598
  <https://doi.org/10.5281/zenodo.1158598>, R package version 1.53.1.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gdx: Interface package for GDX files in R},
    author = {Jan Philipp Dietrich and Anastasis Giannousakis and Markus Bonsch Bonsch},
    year = {2024},
    note = {R package version 1.53.1},
    doi = {10.5281/zenodo.1158598},
  }