To cite calendar-based graphics in publications, please use:

Wang, E, D Cook, and RJ Hyndman (2018). Calendar-based graphics for visualizing people’s daily schedules. eprint: arXiv:1810.09624.

Corresponding BibTeX entry:

  @Misc{,
    author = {Earo Wang and Dianne Cook and Rob J Hyndman},
    title = {Calendar-based graphics for visualizing people's daily
      schedules},
    year = {2018},
    eprint = {arXiv:1810.09624},
  }