Reference for “Use cases and requirements for Media Fragments”

@TechReport{Mannens:09:UMF,
  author      = "Erik Mannens and Rapha{\"{e}}l Troncy",
  title       = "Use cases and requirements for Media Fragments",
  month       = dec,
  note        = "http://www.w3.org/TR/2009/WD-media-frags-reqs-20091217",
  year        = "2009",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}