Reference for “CSS Grid Positioning Module Level 3”

@TechReport{Mielke:07:CGP,
  author      = "Markus Mielke and Alex Mogilevsky",
  title       = "{CSS} Grid Positioning Module Level 3",
  month       = sep,
  note        = "http://www.w3.org/TR/2007/WD-css3-grid-20070905",
  year        = "2007",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}