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