To cite fuzzySim in publications use:

A. Marcia Barbosa (2015). “fuzzySim: applying fuzzy logic to binary similarity indices in ecology.” Methods in Ecology and Evolution, 6(7), 853-858. doi:10.1111/2041-210X.12372.

Corresponding BibTeX entry:

  @Article{,
    title = {{fuzzySim}: applying fuzzy logic to binary similarity
      indices in ecology},
    author = {{A. Marcia Barbosa}},
    journal = {Methods in Ecology and Evolution},
    year = {2015},
    volume = {6},
    number = {7},
    pages = {853-858},
    doi = {10.1111/2041-210X.12372},
  }