By Cali A.   Calvanese D.   De Giacomo G.   Lenzerini M.   in Information Systems

ISSN:0306-4379|29|2|147-163

Elsevier‎(2004)‎

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By Donini F.M.   Lenzerini M.   Nardi D.   Nutt W.   in Information and Computation

ISSN:0890-5401|134|1|1-58

Academic Press‎(1997)‎

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