Reference for “WAI-ARIA Best Practices”

@TechReport{Cooper:08:WBP,
  author      = "Michael Cooper and Lisa Pappas and Richard Schwerdtfeger",
  title       = "{WAI}-ARIA Best Practices",
  month       = feb,
  note        = "http://www.w3.org/TR/2008/WD-wai-aria-practices-20080204/",
  year        = "2008",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}