BibTeX Reference for “Polyglot Markup: A robust profile of the HTML5 vocabulary”

@TechReport{Graff:15:PMA,
  author      = "Eliot Graff and Leif Halvard Silli",
  title       = "Polyglot Markup: A robust profile of the {HTML5} vocabulary",
  month       = sep,
  note        = "https://www.w3.org/TR/2015/NOTE-html-polyglot-20150929/",
  year        = "2015",
  bibsource   = "https://w2.syronex.com/jmr/w3c-biblio",
  type        = "{WD} not longer in development",
  institution = "W3C",
}