To cite 'biotools' in publications use:

da Silva, A.R.; Malafaia, G.; Menezes, I.P.P. (2017) biotools: an R function to predict spatial gene diversity via an individual-based approach. Genetics and Molecular Research, 16: gmr16029655.

Corresponding BibTeX entry:

  @Article{,
    title = {biotools: an R function to predict spatial gene diversity
      via an individual-based approach},
    author = {A. R. da Silva and G. Malafaia and I. P. P. {de
      Menezes}},
    journal = {Genetics and Molecular Research},
    year = {2017},
    volume = {16},
    pages = {gmr16029655},
  }