[1]
[CITE[The Opera 7 and 8 DOCTYPE Switches]] <http://www.opera.com/docs/specs/doctype/>
([[名無しさん]])

[2]
[CITE[Welcome to the MSDN Library]] <http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnie60/html/cssenhancements.asp>
([[名無しさん]])

[3]
[CITE[Mozilla's DOCTYPE sniffing]] <http://www.mozilla.org/docs/web-developer/quirks/doctypes.html>
([[名無しさん]])

[4]
[CITE[Doctype switching for SGML comments]] <http://www.howtocreate.co.uk/sgml/doctypeSGML.html>
([[名無しさん]] [WEAK[2005-11-07 00:28:23 +00:00]])

[5]
[[文書型宣言]]中の[[空白]]は無視されているらしい。
<http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/4961>

([[名無しさん]] [WEAK[2005-11-12 13:38:17 +00:00]])

[6]
[CITE[DOCTYPE Switch - uncolored dinosaurs]] <http://foobar.parfe.jp/apteryx.cgi?p=DOCTYPE_Switch>
([[名無しさん]] [WEAK[2005-12-07 11:38:55 +00:00]])

[7]
[CITE[Mozilla's DOCTYPE sniffing - MDC]] <http://developer.mozilla.org/en/docs/Mozilla%27s_DOCTYPE_sniffing>
([[名無しさん]])

[8]
[CITE[Activating the Right Layout Mode Using the Doctype Declaration]] <http://hsivonen.iki.fi/doctype/>
([[名無しさん]])


[9]
[[標準モード]], [[ほぼ標準モード]], [[奇癖モード]]
([[互換モード]]), [[WML 2.0]]モード

([[名無しさん]])