[1] W3C Synchronized Multimedia Home page ( (2012-03-30 15:56:54 +09:00 版)) http://www.w3.org/AudioVideo/

[2] Synchronized Multimedia Activity Statement ( (2012-04-05 02:41:58 +09:00 版)) http://www.w3.org/AudioVideo/Activity.html

[3] SYMM Working Group Charter ( (2009-12-23 03:23:11 +09:00 版)) http://www.w3.org/AudioVideo/2004/symm-wg-charter20060601.html

[4] www-smil@w3.org Mail Archives ( (2014-12-01 11:27:31 +09:00 版)) http://lists.w3.org/Archives/Public/www-smil/

[5]

Synchronized Multimedia Activity Statement (2012-04-05 02:41:58 +09:00) https://www.w3.org/AudioVideo/Activity.html

The SYMM (Synchronized Multimedia) Working Group and SYMM activity are now closed since 01 April 2012.