To cite package ‘ndexr’ in publications use:

  Auer F (2018). _ndexr: NDEx R client library_. R package version
  1.27.0, <https://bioconductor.org/packages/ndexr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ndexr: NDEx R client library},
    author = {Florian Auer},
    year = {2018},
    note = {R package version 1.27.0},
    url = {https://bioconductor.org/packages/ndexr},
  }