Reference for “Mathematical Markup Language (MathML) Version 2.0”

@TechReport{Carlisle:01:MML,
  author      = "David Carlisle and Patrick Ion and Nico Poppelier and Robert Miner",
  title       = "Mathematical Markup Language ({MathML}) Version 2.0",
  month       = feb,
  note        = "http://www.w3.org/TR/2001/REC-MathML2-20010221/",
  year        = "2001",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "first Edition of a Recommendation",
  institution = "W3C",
}