[1] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-08-05 08:09:11 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5236&to=5237>

[2] [CITE['''['''whatwg''']''' 'Main Part of the Content' Idiom]]
([TIME[2010-08-05 08:45:56 +09:00]] 版)
<http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2010-August/027630.html>