To cite package ‘vennplot’ in publications use:

Xu Z, Oldford R (2018). vennplot: Venn Diagrams in 2D and 3D. R package version 1.0, https://github.com/z267xu/vennplot.

Corresponding BibTeX entry:

  @Manual{,
    title = {vennplot: Venn Diagrams in 2D and 3D},
    author = {Zehao Xu and R. Wayne Oldford},
    year = {2018},
    note = {R package version 1.0},
    url = {https://github.com/z267xu/vennplot},
  }