[1] CSS Font Loading Module Level 3 ( (2014-07-07 22:50:03 +09:00 版)) <http://dev.w3.org/csswg/css-font-loading/#task-source>

[2] csswg: changeset 14216:a6477ac45f27 ( (2014-07-08 06:03:38 +09:00 版)) <https://dvcs.w3.org/hg/csswg/rev/a6477ac45f27f60b11cf2bd31854352962af2d02>

[3] Re: [css-font-loading] task source for queued tasks ( (Tab Atkins Jr. 著, 2014-07-08 07:49:05 +09:00 版)) <http://lists.w3.org/Archives/Public/www-style/2014Jul/0104.html>