Carlo Curino Giorgio Orsi Emanuele Panigati Letizia Tanca Accessing and Documenting Relational Databases through OWL Ontologies. 431-442 2009 FQAS http://dx.doi.org/10.1007/978-3-642-04957-6_37 conf/fqas/2009 db/conf/fqas/fqas2009.html#CurinoOPT09