To cite airGR in publications use these two references:

Piazzi G, Thirel G, Perrin C, Delaigue O (2021). “Sequential data assimilation for streamflow forecasting: assessing the sensitivity to uncertinties and to updated variables of a conceptual hydrological model at basin scale.” Water Resources Research, 57(4). doi:10.1029/2020WR028390.

Piazzi G, Delaigue O (2025). airGRdatassim: Ensemble-Based Data Assimilation in GR Hydrological Models. doi:10.32614/CRAN.package.airGRdatassim, R package version 0.1.4, https://CRAN.R-project.org/package=airGRdatassim.

Corresponding BibTeX entries:

  @Article{,
    title = {Sequential data assimilation for streamflow forecasting:
      assessing the sensitivity to uncertinties and to updated
      variables of a conceptual hydrological model at basin scale},
    author = {G. Piazzi and G. Thirel and C. Perrin and O. Delaigue},
    journal = {Water Resources Research},
    year = {2021},
    volume = {57},
    number = {4},
    doi = {10.1029/2020WR028390},
  }

  @Manual{,
    title = {{airGRdatassim}: Ensemble-Based Data Assimilation in {GR}
      Hydrological Models},
    author = {G. Piazzi and O. Delaigue},
    journal = {R News},
    year = {2025},
    note = {R package version 0.1.4},
    doi = {10.32614/CRAN.package.airGRdatassim},
    url = {https://CRAN.R-project.org/package=airGRdatassim},
  }