BibTeX Reference for “CSS Presentation Levels Module”

@TechReport{Lie:14:CPL,
  author      = "H\aa{}kon Wium Lie and Bert Bos and Ian Hickson",
  title       = "{CSS} Presentation Levels Module",
  month       = oct,
  note        = "https://www.w3.org/TR/2014/NOTE-css3-preslev-20141014/",
  year        = "2014",
  bibsource   = "https://w2.syronex.com/jmr/w3c-biblio",
  type        = "{WD} not longer in development",
  institution = "W3C",
}