BibTeX Reference for “CSS Values and Units Module Level 4”

@TechReport{Etemad:20:CVU,
  author      = "Elika Etemad and Tab Atkins Jr.",
  title       = "{CSS} Values and Units Module Level 4",
  month       = nov,
  note        = "https://www.w3.org/TR/2020/WD-css-values-4-20201111/",
  year        = "2020",
  bibsource   = "https://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}