To cite airGR in publications use these two references:

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

Piazzi G, Delaigue O (2021). airGRdatassim: Suite of Tools to Perform Ensemble-Based Data Assimilation in GR Hydrological Models. doi: 10.15454/WEYYVZ, R package version 0.1.3, https://gitlab.irstea.fr/HYCAR-Hydro/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},
    author = {G. Piazzi and G. Thirel and C. Perrin and O. Delaigue},
    journal = {Water Resources Research},
    year = {accepted},
    doi = {10.1029/2020WR028390},
  }

  @Manual{,
    title = {{airGRdatassim}: Suite of Tools to Perform Ensemble-Based
      Data Assimilation in {GR} Hydrological Models},
    author = {G. Piazzi and O. Delaigue},
    journal = {R News},
    year = {2021},
    note = {R package version 0.1.3},
    doi = {10.15454/WEYYVZ},
    url = {https://gitlab.irstea.fr/HYCAR-Hydro/airgrdatassim},
  }