[1] IRC logs: freenode / #whatwg / 20090922 (2009-11-08 22:57:03 +09:00 版) <http://krijnhoetmer.nl/irc-logs/whatwg/20090922#l-100>
[2] IRC logs: freenode / #whatwg / 20120720 ( (2012-07-21 21:01:47 +09:00 版)) <http://krijnhoetmer.nl/irc-logs/whatwg/20120720#l-1155>