Reference for “XPath Requirements Version 2.0”

@TechReport{Scardina:05:XRV,
  author      = "Mark Scardina and Mary F. Fern\'{a}ndez and K. Karun",
  title       = "{XPath} Requirements Version 2.0",
  month       = jun,
  note        = "http://www.w3.org/TR/2005/WD-xpath20req-20050603/",
  year        = "2005",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}