Reference for “Extensible Markup Language (XML) 1.0 (Fourth Edition)”

@TechReport{Bray:06:EML,
  author      = "Tim Bray and Fran\c{c}ois Yergeau and C. M. Sperberg-McQueen and Jean Paoli and Eve Maler",
  title       = "Extensible Markup Language ({XML}) 1.0 (Fourth Edition)",
  month       = aug,
  note        = "http://www.w3.org/TR/2006/REC-xml-20060816",
  year        = "2006",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "first Edition of a Recommendation",
  institution = "W3C",
}