Reference for “A MathML for CSS profile”

@TechReport{Miller:07:AMC,
  author      = "Bruce R. Miller and George Chavchanidze and Patrick D. F. Ion and Bert Bos and David Carlisle",
  title       = "A {MathML} for {CSS} profile",
  month       = dec,
  note        = "http://www.w3.org/TR/2007/WD-mathml-for-css-20071214/",
  year        = "2007",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}