[1] [CITE@en[HTML datatype proposal (ISSUE-63)]]
( ([[Richard Cyganiak]] 著, [TIME[2012-05-10 09:32:47 +09:00]] 版))
<http://lists.w3.org/Archives/Public/public-rdf-wg/2012May/0222.html>

[2] [CITE@en[RDF Schema 1.1]]
( ([TIME[2014-02-27 21:42:23 +09:00]] 版))
<https://dvcs.w3.org/hg/rdf/raw-file/default/rdf-schema/index.html#h3_ch_html>