[1] (X)HTML5 Tracking (2009-08-23 15:52:47 +09:00 版) <http://html5.org/tools/web-apps-tracker?from=2438&to=2439>

[2] IRC logs: freenode / #whatwg / 20100617 (2010-06-27 14:30:04 +09:00 版) <http://krijnhoetmer.nl/irc-logs/whatwg/20100617>

[3] [whatwg] Make "foo at bar.com, " a valid email address list ( (2011-01-06 08:57:58 +09:00 版)) <http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2011-January/029689.html>

[4] Web Applications 1.0 r5740 Revamp how type=email multiple= is specced.]] ( (2011-01-06 08:42:00 +09:00 版)) <http://html5.org/tools/web-apps-tracker?from=5739&to=5740>