To cite RNeXML in publications, please use:

  Boettiger C, Chamberlain S, Vos R, Lapp H (2016). “RNeXML: A Package
  for Reading and Writing Richly Annotated Phylogenetic, Character, and
  Trait Data in R.” _Methods in Ecology and Evolution_, *7*, 352-357.
  doi:10.1111/2041-210X.12469
  <https://doi.org/10.1111/2041-210X.12469>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {{RNeXML}: {A} Package for Reading and Writing Richly Annotated Phylogenetic, Character, and Trait Data in {R}},
    journal = {Methods in Ecology and Evolution},
    author = {Carl Boettiger and Scott Chamberlain and Rutger Vos and Hilmar Lapp},
    year = {2016},
    volume = {7},
    pages = {352--357},
    doi = {10.1111/2041-210X.12469},
  }