To cite package ‘emodnet.wfs’ in publications use:

  Krystalli A, Fernández-Bejarano S, Salmon M (????). _emodnet.wfs:
  Access EMODnet Web Feature Service data through R_. doi:10.14284/679
  <https://doi.org/10.14284/679>, R package version 2.0.2.9000.
  Integrated data products created under the European Marine
  Observation Data Network (EMODnet) Biology project
  (EASME/EMFF/2017/1.3.1.2/02/SI2.789013), funded by the by the
  European Union under Regulation (EU) No 508/2014 of the European
  Parliament and of the Council of 15 May 2014 on the European Maritime
  and Fisheries Fund, <https://github.com/EMODnet/emodnet.wfs>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{emodnet.wfs}: Access EMODnet Web Feature Service data through R},
    author = {Anna Krystalli and Salvador Fernández-Bejarano and Maëlle Salmon},
    note = {R package version 2.0.2.9000. Integrated data products created under the European Marine Observation Data Network (EMODnet) Biology project (EASME/EMFF/2017/1.3.1.2/02/SI2.789013), funded by the by the European Union under Regulation (EU) No 508/2014 of the European Parliament and of the Council of 15 May 2014 on the European Maritime and Fisheries Fund},
    url = {https://github.com/EMODnet/emodnet.wfs},
    doi = {10.14284/679},
  }