[1] W3C Software Notice and License (2015-01-28 07:34:03 +09:00 版) http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231

[2] W3C Software and Document Notice and License ( (2015-05-22 01:20:36 +09:00 版)) http://www.w3.org/Consortium/Legal/2015/copyright-software-and-document