[1] [CITE[Guide to the W3C XML Specification (XMLspec) DTD, Version 2.1]], [TIME[2014-02-24T23:47:01.000Z]], [TIME[2024-08-24T02:21:15.767Z]] <https://www.w3.org/XML/1998/06/xmlspec-report.htm#bibl>

[2] [CITE[Guide to the W3C XML Specification (XMLspec) DTD, Version 2.1]], [TIME[2014-02-24T23:47:01.000Z]], [TIME[2024-08-24T02:41:18.685Z]] <https://www.w3.org/XML/1998/06/xmlspec-report.htm#bibref>

[3] [CITE[Guide to the W3C XML Specification (XMLspec) DTD, Version 2.1]], [TIME[2014-02-24T23:47:01.000Z]], [TIME[2024-08-24T02:43:31.620Z]] <https://www.w3.org/XML/1998/06/xmlspec-report.htm#AEN2622>