To cite the 'phylopath' package in publications use:

von Hardenberg A and Gonzalez-Voyer A (2013). “Disentangling evolutionary cause-effect relationships with phylogenetic confirmatory path analysis.” Evolution, 67 - 2, pp. 378-387. doi: 10.1111/j.1558-5646.2012.01790.x.

van der Bijl W (2017). “phylopath: Easy phylogenetic path analysis in R.” bioRxiv. doi: 10.1101/212068, R package version 1.0.0.

Corresponding BibTeX entries:

  @Article{phylopath-methods-paper,
    title = {Disentangling evolutionary cause-effect relationships with
      phylogenetic confirmatory path analysis},
    author = {Achaz {von Hardenberg} and Alejandro Gonzalez-Voyer},
    journal = {Evolution},
    volume = {67 - 2},
    pages = {378-387},
    year = {2013},
    doi = {10.1111/j.1558-5646.2012.01790.x},
  }

  @Article{phylopath-package,
    title = {phylopath: Easy phylogenetic path analysis in R.},
    author = {Wouter {van der Bijl}},
    journal = {bioRxiv},
    year = {2017},
    note = {R package version 1.0.0},
    doi = {10.1101/212068},
  }