[1] Web Controls 1.0 (2004-11-09 08:49:52 +09:00 版) <http://www.whatwg.org/specs/web-controls/current-work/#user-modify>

[2] User Interface Enhancements ( (1999-09-16 05:07:02 +09:00 版)) <http://www.w3.org/TR/1999/WD-css3-userint-19990916#user-modify>

[3] User Interface for CSS3 ( (2000-06-23 03:09:21 +09:00 版)) <http://www.w3.org/TR/2000/WD-css3-userint-20000216#user-modify>

[4] Web Controls 1.0 ( (2004-11-09 08:49:52 +09:00 版)) <http://www.whatwg.org/specs/web-controls/current-work/#editing>

[5] Web Applications Markup Language 1.0 ( (2004-04-08 02:39:12 +09:00 版)) <http://hixie.ch/specs/html/apps/web-apps-1#editing>