[1] CSS Fonts Module Level 3 ( (2013-05-24 22:44:30 +09:00 版)) http://dev.w3.org/csswg/css-fonts/#cssfontfacerule

[2] Re: [css3-fonts][cssom] CSSFontFeatureValuesRule vs. CSSKeyframesRule ( (John Daggett 著, 2013-05-29 12:45:11 +09:00 版)) http://lists.w3.org/Archives/Public/www-style/2013May/0724.html

[3] [css-fonts] About the breaking change to CSSFontFaceRule interface (Xidorn Quan著, 2016-08-02 15:59:36 +09:00) https://lists.w3.org/Archives/Public/www-style/2016Aug/0000.html

[4] [css-fonts] About the breaking change to CSSFontFaceRule interface (Xidorn Quan著, 2016-08-02 15:59:36 +09:00) https://lists.w3.org/Archives/Public/www-style/2016Aug/0000.html

[5] CSSFontFaceRule etc. exposed to Window (ericwilligers著, 2018-02-22 13:43:25 +09:00) https://github.com/w3c/csswg-drafts/commit/144108785bd098d5b18d3866222254ae7b83696e

[6] CEA-2014-B