Reference for “HTML 4.0 Recommendation”

@TechReport{Hors:97:HR,
  author      = "Arnaud Le Hors and David Raggett and Ian Jacobs",
  title       = "{HTML} 4.0 Recommendation",
  month       = dec,
  note        = "http://www.w3.org/TR/REC-html40-971218",
  year        = "1997",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "first Edition of a Recommendation",
  institution = "W3C",
}