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

@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},
}