Reference for “XPointer xpointer() Scheme”

@TechReport{DeRose:02:XS,
  author      = "Steven DeRose and Eve Maler and Ron Daniel Jr.",
  title       = "{XPointer} xpointer() Scheme",
  month       = dec,
  note        = "http://www.w3.org/TR/2002/WD-xptr-xpointer-20021219/",
  year        = "2002",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}