To cite the methodology behind eulerr in publications, please use:

  Larsson J, Gustafsson P (2018). “A Case Study in Fitting
  Area-Proportional Euler Diagrams with Ellipses Using eulerr.” In
  _Proceedings of International Workshop on Set Visualization and
  Reasoning_, volume 2116, 84-91.
  <https://ceur-ws.org/Vol-2116/paper7.pdf>.

A BibTeX entry for LaTeX users is

  @InProceedings{,
    title = {A Case Study in Fitting Area-Proportional {{Euler}} Diagrams with Ellipses Using eulerr},
    booktitle = {{Proceedings of {{International Workshop}} on {{Set Visualization}} and {{Reasoning}}}},
    author = {Johan Larsson and Peter Gustafsson},
    year = {2018},
    month = {apr},
    volume = {2116},
    pages = {84--91},
    publisher = {{{CEUR Workshop Proceedings}}},
    address = {{{Edinburgh, United Kingdom}}},
    url = {https://ceur-ws.org/Vol-2116/paper7.pdf},
  }
