[1] [CITE[IRC logs: freenode / #whatwg / 20130519]]
( ([TIME[2013-05-21 07:58:14 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20130519>

[2] [CITE[More about devicePixelRatio - QuirksBlog]]
( ([TIME[2013-05-20 23:07:00 +09:00]] 版))
<http://www.quirksmode.org/blog/archives/2012/07/more_about_devi.html>

[3] [CITE[ハマリメモ:Android の devicePixelRatio 1.5 問題【その仕事、蠍は留守です】]]
( ([TIME[2012-11-02 14:57:02 +09:00]] 版))
<http://www.hitoyam.com/web/2011/03/06_2359.html>