If you use easyclimate, please cite both the data source and the
package as:

  Moreno A, Hasenauer H (2016). “Spatial downscaling of European
  climate data.” _International Journal of Climatology_, 1444–1458.
  <https://doi.org/10.1002/joc.4436>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Spatial downscaling of European climate data},
    author = {Adam Moreno and Hubert Hasenauer},
    year = {2016},
    journal = {International Journal of Climatology},
    number = {36},
    pages = {1444–1458},
    url = {https://doi.org/10.1002/joc.4436},
  }

  Pucher C, Neumann M (2022). _Description and Evaluation of Downscaled
  Daily Climate Data Version 3_.
  <https://doi.org/10.6084/m9.figshare.19070162.v1>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Description and Evaluation of Downscaled Daily Climate Data Version 3},
    author = {Christoph Pucher and Mathias Neumann},
    year = {2022},
    url = {https://doi.org/10.6084/m9.figshare.19070162.v1},
  }

  Pucher C (2023). _Description and Evaluation of Downscaled Daily
  Climate Data Version 4_.
  <https://doi.org/10.6084/m9.figshare.22962671.v1>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Description and Evaluation of Downscaled Daily Climate Data Version 4},
    author = {Christoph Pucher},
    year = {2023},
    url = {https://doi.org/10.6084/m9.figshare.22962671.v1},
  }

  Cruz-Alonso V, Pucher C, Ratcliffe S, Ruiz-Benito P, Astigarraga J,
  Neumann M, Hasenauer H, Rodríguez-Sánchez F (2023). “The easyclimate
  R package: Easy access to high-resolution daily climate data for
  Europe.” _Environmental Modelling & Software_, 105627.
  <https://doi.org/10.1016/j.envsoft.2023.105627>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {The easyclimate R package: Easy access to high-resolution daily climate data for Europe},
    author = {Verónica Cruz-Alonso and Christoph Pucher and Sophia Ratcliffe and Paloma Ruiz-Benito and Julen Astigarraga and Mathias Neumann and Hubert Hasenauer and Francisco Rodríguez-Sánchez},
    journal = {Environmental Modelling & Software},
    pages = {105627},
    year = {2023},
    url = {https://doi.org/10.1016/j.envsoft.2023.105627},
  }