Reference for “XHTML Media Types - Second Edition”

@TechReport{McCarron:09:XMT,
  author      = "Shane McCarron",
  title       = "{XHTML} Media Types - Second Edition",
  month       = jan,
  note        = "http://www.w3.org/TR/2009/NOTE-xhtml-media-types-20090116",
  year        = "2009",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Note",
  institution = "W3C",
}