[1] [CITE[''''''[''''''whatwg'''''']'''''' HTML: A DOM attribute that returns the language of a node]]
( ([TIME[2013-05-01 17:49:20 +09:00]] 版))
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2013-May/039480.html>

[2] [CITE[''''''[''''''whatwg'''''']'''''' HTML: A DOM attribute that returns the language of a node]]
( ([TIME[2013-09-19 00:03:50 +09:00]] 版))
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2013-September/040866.html>