Reference for “EMMA: Extensible MultiModal Annotation markup language”

@TechReport{Johnston:09:EEM,
  author      = "Michael Johnston",
  title       = "{EMMA}: Extensible MultiModal Annotation markup language",
  month       = feb,
  note        = "http://www.w3.org/TR/2009/REC-emma-20090210/",
  year        = "2009",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Recommendation",
  institution = "W3C",
}