@techreport{CSS2.1-2007,
	title = {Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification},
	author = {Bert Bos and Tantek Çelik and Ian Hickson and Håkon Wium Lie},
	day = {17},
	editor = {Bert Bos and Tantek Çelik and Ian Hickson and Håkon Wium Lie},
	institution = {W3C},
	month = {July},
	type = {W3C Candidate Recommendation},
	url = {http://www.w3.org/TR/2007/CR-CSS21-20070719},
	year = {2007},
	biburl = {http://www.bibsonomy.org/bibtex/2da8572456c0e67cf3d027ae1658dbb68/haschek},
	keywords = {CSS English Stylesheets W3C _Diplomathesis }
}