Reference for “XQuery 1.0: An XML Query Language (Second Edition)”

@TechReport{0960941,
  author      = "Mary F. Fern\'{a}ndez and Daniela Florescu and Scott Boag and Jonathan Robie and Don Chamberlin and J\'{e}r\^{o}me Sim\'{e}on",
  title       = "{XQuery} 1.0: An {XML} Query Language (Second Edition)",
  month       = apr,
  note        = "http://www.w3.org/TR/2009/PER-xquery-20090421/",
  year        = "2009",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Proposed Edited Recommendation",
  institution = "W3C",
}