Davis G (2018). colorSpec: Color Calculations with Emphasis on Spectral Data. R package version 0.7-3, https://CRAN.R-project.org/package=colorSpec.

Corresponding BibTeX entry:

  @Manual{,
    title = {{colorSpec}: Color Calculations with Emphasis on Spectral
      Data},
    author = {Glenn Davis},
    year = {2018},
    note = {R package version 0.7-3},
    url = {https://CRAN.R-project.org/package=colorSpec},
  }