Reference for “Synchronized Multimedia Integration Language (SMIL 2.1)”

@TechReport{Zucker:05:SMI,
  author      = "Daniel Zucker and Jack Jansen and Sjoerd Mullender and Antti Koivisto and Guido Grassel and Thierry Michel and Dick Bulterman and Nabil Laya{\"{\i}}da",
  title       = "Synchronized Multimedia Integration Language ({SMIL} 2.1)",
  month       = dec,
  note        = "http://www.w3.org/TR/2005/REC-SMIL2-20051213/",
  year        = "2005",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Recommendation",
  institution = "W3C",
}