Reference for “Cascading Style Sheets (CSS1) Level 1 Specification”

@TechReport{Lie:08:CSS,
  author      = "H\aa{}kon Wium Lie and Bert Bos",
  title       = "Cascading Style Sheets ({CSS1}) Level 1 Specification",
  month       = apr,
  note        = "http://www.w3.org/TR/2008/REC-CSS1-20080411/",
  year        = "2008",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Recommendation",
  institution = "W3C",
}