@techreport{murrell-wong-hyperfun-2022,
  title="Constructive Solid Geometry and Function Representation in R",
  author = {Paul Murrell and Jack Wong},
  year={2022},
  note={version 1},
  institution={Department of Statistics, The University of Auckland},
  number={2022-04},
  url={https://stattech.blogs.auckland.ac.nz/2022/12/19/2022-04-constructive-solid-geometry-and-function-representation-in-xbr},
  doi={10.17608/k6.auckland.21747875}
}