To cite the function DER in publications please use:

Guisande C., Heine J., García-Roselló E., González-Dacosta J., González-Vilas L. & Pérez-Schofield B.J. (2017). DER: An algorithm for comparing species diversity between assemblages. Ecological Indicators, 81: 41:46. URL http://www.sciencedirect.com/science/article/pii/S1470160X17303047

Corresponding BibTeX entry:

  @Article{,
    title = {DER: An algorithm for comparing species diversity between
      assemblages},
    author = {C. Guisande and J. Heine and E. García-Roselló and J.
      González-Dacosta and L. González-Vilas and B.J. Pérez-Schofield},
    journal = {Ecological Indicators},
    year = {2017},
    volume = {81},
    pages = {41--46},
    url =
      {http://www.sciencedirect.com/science/article/pii/S1470160X17303047},
  }