To cite package 'FlowRegEnvCost' in publications use:

de Jal'on SG, T'anago MGd, Alonso C, de Jal'on DG (2017). “The Environmental Costs of Water Flow Regulation: an Innovative Approach Based on the 'Polluter Pays' Principle.” Water Resources Management, 31(9), 2809–2822. ISSN 1573-1650, doi:10.1007/s11269-017-1663-0, https://doi.org/10.1007/s11269-017-1663-0.

Corresponding BibTeX entry:

  @Article{,
    title = {The Environmental Costs of Water Flow Regulation: an
      Innovative Approach Based on the 'Polluter Pays' Principle},
    author = {Silvestre Garc{'i}a {de Jal{'o}n} and Marta Gonz{'a}lez
      del T{'a}nago and Carlos Alonso and Diego Garc{'i}a {de
      Jal{'o}n}},
    journal = {Water Resources Management},
    year = {2017},
    month = {Jul},
    day = {01},
    volume = {31},
    number = {9},
    pages = {2809--2822},
    issn = {1573-1650},
    doi = {10.1007/s11269-017-1663-0},
    url = {https://doi.org/10.1007/s11269-017-1663-0},
  }