Reference for “SVG Filters 1.2, Part 1: Primer”

@TechReport{7252518,
  author      = "Erik Dahlstr{\"{o}}m",
  title       = "{SVG} Filters {1.2}, Part 1: Primer",
  month       = may,
  note        = "http://www.w3.org/TR/2007/WD-SVGFilterPrimer12-20070501/",
  year        = "2007",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}