[1] Document Structure – SVG 1.1 (Second Edition) ( (2011-08-10 12:35:27 +09:00 版)) http://www.w3.org/TR/2011/REC-SVG11-20110816/struct.html#InterfaceSVGDocument

[2] Re: DOM 4 request ( (Dirk Schulze 著, 2013-03-11 23:14:19 +09:00 版)) http://lists.w3.org/Archives/Public/www-dom/2013JanMar/0180.html

[3] Remove requirement for SVGDocument property on the Document interface… ( (nikosandronikos著, 2016-05-04 13:28:22 +09:00)) https://github.com/w3c/svgwg/commit/10f8d72c4c627deaa8b796e7f8651bcc5b1dbd0f