[1] [CITE@en-US[CSSOM Values Module]]
( ([TIME[2012-03-21 08:56:43 +09:00]] 版))
<http://dvcs.w3.org/hg/csswg/raw-file/tip/cssom-values/Overview.html>

[2] [CITE@en-US[cssom-values: Summary]]
( ([TIME[2013-05-26 02:12:42 +09:00]] 版))
<https://dvcs.w3.org/hg/cssom-values/>

[3] [CITE@en-US[CSSOM Values Module]]
( ([TIME[2013-05-24 13:44:30 +09:00]] 版))
<http://dev.w3.org/csswg/cssom-values/>

[4] [CITE[IRC logs: freenode / #whatwg / 20130809]]
( ([TIME[2013-08-11 19:46:34 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20130809>

[5] [CITE[IRC logs: freenode / #whatwg / 20140124]]
( ([TIME[2014-01-26 11:20:31 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20140124>