[1] [CITE@en[Shadow DOM]]
( ([TIME[2012-04-24 21:46:43 +09:00]] 版))
<http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html>

[2] [CITE@en[Shadow DOM]]
( ([TIME[2012-05-19 05:50:41 +09:00]] 版))
<http://www.w3.org/TR/2012/WD-shadow-dom-20120522/>

[3] [CITE@en[Shadow DOM]]
( ([TIME[2012-10-13 06:12:35 +09:00]] 版))
<http://www.w3.org/TR/2012/WD-shadow-dom-20121016/>