[1] R2RML: RDB to RDF Mapping Language ( ()) <https://www.w3.org/TR/r2rml/>
[2] R2RML: RDB to RDF Mapping Language ( ()) <https://www.w3.org/TR/2012/REC-r2rml-20120927/>
[3] RDB2RDF WG now officially closed (Ivan Herman 著, 版) <http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2012Oct/0001.html>
[4] RDB2RDF Implementation Report ( ()) <https://www.w3.org/TR/2012/NOTE-rdb2rdf-implementations-20120814/>
[5] A Direct Mapping of Relational Data to RDF ( ()) <https://www.w3.org/TR/rdb-direct-mapping/>
[6] A Direct Mapping of Relational Data to RDF ( ()) <https://www.w3.org/TR/2012/REC-rdb-direct-mapping-20120927/>
[7] RDB2RDF/SQL Version IRIs - Semantic Web Standards ( ()) <https://www.w3.org/2001/sw/wiki/RDB2RDF/SQL_Version_IRIs>
[8] RDB2RDF - Semantic Web Standards ( ()) <https://www.w3.org/2001/sw/wiki/RDB2RDF>