To cite hydroGOF in publications use:

Mauricio Zambrano-Bigiarini. (2017) hydroGOF: Goodness-of-fit functions for comparison of simulated and observed hydrological time seriesR package version 0.3-10. URL http://hzambran.github.io/hydroGOF/.<doi:10.5281/zenodo.840087>.

I have invested an important amount of time and effort in creating hydroGOF, please cite it if you use it !

Corresponding BibTeX entry:

  @Manual{,
    title = {hydroGOF: Goodness-of-fit functions for comparison of
      simulated and observed hydrological time series},
    author = {{Mauricio Zambrano-Bigiarini}},
    year = {2017},
    note = {R package version 0.3-10},
    url = {http://hzambran.github.io/hydroGOF/},
    doi = {10.5281/zenodo.840087},
  }