[1] [CITE@en[Associating Schemas with XML documents 1.0 (First Edition)]]
([TIME[2010-04-17 05:32:14 +09:00]] 版)
<http://www.w3.org/TR/2010/NOTE-xml-model-20100415/>

[2] [CITE@en[Associating Schemas with XML documents 1.0 (First Edition)]]
([TIME[2010-04-17 01:20:22 +09:00]] 版)
<http://www.w3.org/XML/2010/04/xml-model/>