[1] CSS Regions proposal ( (Stephen Zilles 著, 2011-03-09 06:28:25 +09:00 版)) <http://lists.w3.org/Archives/Public/www-archive/2011Mar/0011.html>

[2] CSS Regions Module ( (2011-06-09 22:15:13 +09:00 版)) <http://www.w3.org/TR/2011/WD-css3-regions-20110609/>

[3] CSS Regions Module Level 3 ( (2012-08-22 22:09:33 +09:00 版)) <http://www.w3.org/TR/2012/WD-css3-regions-20120823/>