Harel Lustiger (2021). Design Patterns in R. Tidylab, Auckland, New Zealand. URL https://github.com/tidylab/R6P.

@Manual{,
  title = {Design Patterns in R},
  author = {Harel Lustiger},
  organization = {Tidylab},
  address = {Auckland, New Zealand},
  year = {2021},
  url = {https://github.com/tidylab/R6P},
}