Reference for “HTML 4.01 Specification”

@TechReport{Jacobs:99:HS,
  author      = "Ian Jacobs and David Raggett and Arnaud Le Hors",
  title       = "{HTML} 4.01 Specification",
  month       = dec,
  note        = "http://www.w3.org/TR/1999/REC-html401-19991224",
  year        = "1999",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Recommendation",
  institution = "W3C",
}