[1] Web Applications 1.0 r5961 ( ( 版)) <http://html5.org/tools/web-apps-tracker?from=5960&to=5961>
[2] HTML Speech Incubator Group Final Report ( ( 版)) <http://www.w3.org/2005/Incubator/htmlspeech/XGR-htmlspeech-20111206/#dfn-src>
[3] Deprecate mediagroup/MediaController? · Issue #192 · whatwg/html ( 版) <https://github.com/whatwg/html/issues/192>
[4] Remove MediaController and media element's mediagroup attribute ( (annevk著, )) <https://github.com/whatwg/html/commit/634698e70ea4586d58c989fa7d2cbfcad20d33e6>