[1] setProperty Method (2007-02-11 23:55:46 +09:00 版) <http://msdn2.microsoft.com/en-us/library/ms760290.aspx> (名無しさん)

[2] Second-level DOM Properties (2007-02-11 23:56:38 +09:00 版) <http://msdn2.microsoft.com/en-us/library/ms766391.aspx>

[3] csswg: changeset 14611:befbfb8e871e ( (2014-10-10 07:15:57 +09:00 版)) <https://dvcs.w3.org/hg/csswg/rev/befbfb8e871e87d6fd938f0a945e740cf1254b67>