Diego Calvanese Giuseppe De Giacomo Domenico Lembo Maurizio Lenzerini Antonella Poggi Riccardo Rosati Marco Ruzzi Data Integration throughDL-Lite<sub>A</sub> Ontologies. 26-47 2008 SDKB http://dx.doi.org/10.1007/978-3-540-88594-8_2 conf/sdb/2008 db/conf/sdb/sdkb2008.html#CalvaneseGLLPRR08