To cite phylosignal in publications use:

Keck F., Rimet F., Bouchez A., and Franc A. (2016). phylosignal: an R package to measure, test, and explore the phylogenetic signal. Ecology and Evolution, 6(9), 2774-2780.<doi:10.1002/ece3.2051>

Corresponding BibTeX entry:

  @Article{,
    title = {phylosignal: an R package to measure, test, and explore
      the phylogenetic signal},
    author = {Francois Keck and Frederic Rimet and Agnes Bouchez and
      Alain Franc},
    journal = {Ecology and Evolution},
    year = {2016},
    volume = {6},
    number = {9},
    pages = {2774--2780},
    doi = {10.1002/ece3.2051},
  }