BibTeX Reference for “CSS Layout API Level 1”

@TechReport{Atanassov:18:CLA,
  author      = "Rossen Atanassov and Tab Atkins Jr. and Shane Stephens and Robert O'Callahan and Greg Whitworth and Ian Kilpatrick",
  title       = "{CSS} Layout {API} Level 1",
  month       = apr,
  note        = "https://www.w3.org/TR/2018/WD-css-layout-api-1-20180412/",
  year        = "2018",
  bibsource   = "https://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}