@Manual{R,
    title = {R: A Language and Environment for Statistical Computing},
    author = {{R Core Team}},
    organization = {R Foundation for Statistical Computing},
    address = {Vienna, Austria},
    year = {2022},
    url = {https://www.R-project.org/},
  }

@techreport{murrell-geometry-engine-2019,
  title="A Geometry Engine Interface for 'grid'",
  author = {Paul Murrell},
  year={2019},
  note={version 4},
  institution={Department of Statistics, The University of Auckland},
  number={2019-01},
  url={https://stattech.wordpress.fos.auckland.ac.nz/2019/03/04/2019-01-a-geomet…terface-for-grid/},
  doi={10.17608/k6.auckland.7796831}
}

@techreport{murrell-coords-2022,
  title="Constructive Geometry for Complex Grobs",
  author = {Paul Murrell},
  year={2022},
  note={version 1},
  institution={Department of Statistics, The University of Auckland},
  number={2022-01},
  url={https://stattech.blogs.auckland.ac.nz/2022/06/01/2022-02-constructive-geometry-for-complex-grobs},
  doi={http://dx.doi.org/10.17608/k6.auckland.19945814}
}

  @Manual{pkg:polyclip,
    title = {polyclip: Polygon Clipping},
    author = {Angus Johnson and Adrian Baddeley},
    year = {2019},
    note = {R package version 1.10-0},
    url = {https://CRAN.R-project.org/package=polyclip},
  }

@InProceedings{AiHear,
  author = {Tim Beresford and Jack Wong},
  title = {Implementing a portable augmented/virtual reality auralisation
tool on consumer-grade devices},
  booktitle    = "Acoustics 2021 Making Waves",
  year         = "2022",
  editor       = "Nicole Kessissoglou and Marc Buret",
  series       = "Proceedings of the Annual Conference
of the Australian Acoustical Society",
  month        = "February",
isbn = {978-0-909882-10-5}
}

  @Book{ggplot2,
    author = {Hadley Wickham},
    title = {ggplot2: Elegant Graphics for Data Analysis},
    publisher = {Springer-Verlag New York},
    year = {2016},
    isbn = {978-3-319-24277-4},
    url = {https://ggplot2.tidyverse.org},
  }


  @Manual{pkg:gggrid,
    title = {gggrid: Draw with 'grid' in 'ggplot2'},
    author = {Paul Murrell},
    year = {2022},
    note = {R package version 0.2-0},
    url = {https://CRAN.R-project.org/package=gggrid},
  }

@book{metafont,
author = {Knuth, Donald E.},
title = {The Metafont Book},
year = {1989},
isbn = {0201134446},
publisher = {Addison-Wesley Longman Publishing Co., Inc.},
address = {USA}
}

@article{metapost-hobby,
author = {Hobby, John},
year = {1998},
month = {08},
title = {{A User's Manual for MetaPost}}
}