[1] [CITE@en[Custom Elements]]
( ([TIME[2013-02-16 19:33:10 +09:00]] 版))
<https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/index.html#monkeypatch-create-element>

[2] [CITE@en[Custom Elements]]
( ([TIME[2013-05-13 23:16:10 +09:00]] 版))
<http://www.w3.org/TR/2013/WD-custom-elements-20130514/>

[3] [CITE@en[Custom Elements]]
( ([TIME[2013-10-24 05:57:19 +09:00]] 版))
<http://www.w3.org/TR/2013/WD-custom-elements-20131024/>