Reference for “HTML 4.0 Specification”

@TechReport{Hors:98:HS,
  author      = "Arnaud Le Hors and Ian Jacobs and David Raggett",
  title       = "{HTML} 4.0 Specification",
  month       = apr,
  note        = "http://www.w3.org/TR/1998/REC-html40-19980424",
  year        = "1998",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "supersed Work",
  institution = "W3C",
}