Reference for “XForms Requirements”

@TechReport{Raggett:01:XR,
  author      = "David Raggett and Sebastian Schnitzenbaumer and Malte Wedel and Micah Dubinko",
  title       = "{XForms} Requirements",
  month       = apr,
  note        = "http://www.w3.org/TR/2001/WD-xhtml-forms-req-20010404",
  year        = "2001",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}