[1] [CITE@en-US[Selectors API Level 1]]
( ([TIME[2013-02-22 02:57:52 +09:00]] 版))
<http://www.w3.org/TR/2013/REC-selectors-api-20130221/>

[2] [CITE[IRC logs: freenode / #whatwg / 20140409]]
( ([TIME[2014-04-10 13:28:16 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20140409#l-604>

[3] [CITE[InternetExplorer - 一部のブラウザでは $$() と document.querySelectorAll() で等価ではない - Qiita]]
([TIME[2015-10-23 13:37:32 +09:00]] 版)
<https://qiita.com/tom_konda/items/864e285defc1b17f7a0e>

[4] [CITE@en[Align with changes in Selectors]]
( ([[annevk]]著, [TIME[2016-06-10 16:44:08 +09:00]]))
<https://github.com/whatwg/dom/commit/1594aa52357371354780750413ad88e9e8a2b56b>