techno.md

@@ -26,6 +26,8 @@
      * [D2RQ] `(Java)`
      * [OpenLink Virtuoso RDF Views] `(C)`
      * [R2RML Parser] `(Java)`
+     * [Ontop] `(Java)`
+     * [rdb2rdf] `(Python)`
      * [Triplify] `(PHP)`
      * [R2D2] `(PHP)`
      * [RDF4J] `(aka Sesame)` + [r2rml-api-rdf4j-bridge] `(Java)`
@@ -90,6 +92,8 @@ See also:
 [r2d2]:http://aksw.org/Projects/R2D2.html
 [openlink virtuoso triplestore]:https://virtuoso.openlinksw.com/
 [openlink virtuoso rdf views]:https://virtuoso.openlinksw.com/whitepapers/relational%20rdf%20views%20mapping.html
+[ontop]:https://github.com/ontop/ontop/wiki
+[rdb2rdf]:https://pypi.org/project/rdb2rdf/
 [triplify]:http://semanticweb.org/wiki/Triplify.html
 [rdf4j]:http://rdf4j.org/
 [r2rml-api-rdf4j-bridge]:https://github.com/R2RML-api/R2RML-api