[1] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-03-18 21:24:19 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=4856&to=4857>

[2] [CITE[IRC logs: freenode / #whatwg / 20140204]]
( ([TIME[2014-02-05 20:30:59 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20140204>