@misc{hddtools-archive,
  author       = {Claudia Vitolo},
  title        = {hddtools: Hydrological Data Discovery Tools},
  month        = Sep,
  year         = 2016,
  doi          = {10.5281/zenodo.61570},
  url          = {http://dx.doi.org/10.5281/zenodo.61570}
}

@Manual{R-base,
    title = {R: A Language and Environment for Statistical Computing},
    author = {{R Core Team}},
    organization = {R Foundation for Statistical Computing},
    address = {Vienna, Austria},
    year = {2016},
    url = {https://www.R-project.org/},
}

@article{rdefra,
  doi = {10.21105/joss.00051},
  url = {http://dx.doi.org/10.21105/joss.00051},
  year  = {2016},
  month = {aug},
  publisher = {The Open Journal},
  volume = {1},
  number = {4},
  author = {Claudia Vitolo and Andrew Russell and Allan Tucker},
  title = {rdefra: Interact with the {UK} {AIR} Pollution Database from {DEFRA}},
  journal = {{JOSS}}
}

@Manual{rnrfa,
  author = {Claudia Vitolo and
            Matthew Fry and
            Wouter Buytaert},
  title = {rnrfa: UK National River Flow Archive Data from R},
  year = 2015,
  note = {R package version 0.5.3},
  url = {https://CRAN.R-project.org/package=rnrfa}
}
