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Calì, Andrea and Gottlob, G. and Lukasiewicz, T. (2012) A general datalog-based framework for tractable query answering over ontologies. Web Semantics: Science, Services and Agents on the World Wide Web 14 , pp. 57-83. ISSN 1570-8268.

Calì, Andrea and Gottlob, G. and Lukasiewicz, T. and Pieris, A. (2011) A logical toolbox for ontological reasoning. ACM SIGMOD Record 40 (3), pp. 5-14. ISSN 0163-5808.

Calì, Andrea and Gottlob, G. and Lukasiewicz, T. and Pieris, A. (2011) Datalog+/-: a family of languages for ontology querying. In: de Moor, O. and Gottlob, G. and Furche, T. and Sellers, A. (eds.) Datalog Reloaded. Lecture Notes in Computer Science 6702. London, UK: Springer, pp. 351-368. ISBN 9783642242069.

Calì, Andrea and Gottlob, G. and Kifer, M. and Lukasiewicz, T. and Pieris, A. (2010) Ontological reasoning with F-Logic Lite and its extensions. In: UNSPECIFIED (ed.) Proceedings of the Twenty-Fourth AAAI Conference on Artificial Intelligence. AAAI 10. Palo Alto, California, USA: AAAI Publications, pp. 1660-1665. ISBN 9781577354635.

Calì, Andrea and Gottlob, G. and Lukasiewicz, T. and Marnette, B. and Pieris, A. (2010) Datalog+/-: a family of logical knowledge representation and query languages for new applications. In: UNSPECIFIED (ed.) 25th Annual IEEE Symposium on Logic in Computer Science. Washington, USA: IEEE Computer Society, pp. 228-242. ISBN 9780769541143.

Calì, Andrea and Gottlob, G. and Lukasiewicz, T. (2009) Datalog extensions for tractable query answering over ontologies. In: de Virgilio, R. and Giunchiglia, F. and Tanca, L. (eds.) Semantic Web Information Management. Berlin, Germany: Springer, pp. 249-279. ISBN 9783642043284.

Calì, Andrea and Gottlob, G. and Lukasiewicz, T. (2009) Datalog±: a unified approach to ontologies and integrity constraints. In: Fagin, R. (ed.) Proceedings of the 12th International Conference on Database Theory - ICDT '09. ACM International Conference Proceeding Series 361. New York, U.S.: ACM Publications, pp. 14-30. ISBN 9781605584232.

Calì, Andrea and Lukasiewicz, T. and Predoiu, L. and Stuckenschmidt, H. (2009) Tightly coupled probabilistic description logic programs for the semantic web. In: Spaccapietra, S. (ed.) Journal on Data Semantics XII. Lecture Notes in Computer Science 5480. Berlin, Germany: Springer, pp. 95-130. ISBN 9783642006845.

Calì, Andrea and Gottlob, G. and Lukasiewicz, T. (2009) Tractable query answering over ontologies with datalog. In: Cuenca Grau, B. and Horrocks, I. and Motik, B. and Sattler, U. (eds.) Proceedings of the 22nd International Workshop on Description Logics (DL 2009), Oxford, UK, July 27-30, 2009. CEUR Workshop Proceedings 477. CEUR Workshop Proceedings.

Calì, Andrea and Gottlob, G. and Lukasiewicz, T. (2009) A general datalog-based framework for tractable query answering over ontologies. In: Paredaens, J. and Su, J. (eds.) Proceedings of the twenty-eighth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems - PODS '09. New York, U.S.: ACM Publications, pp. 77-86. ISBN 9781605585536.

Calì, Andrea and Lukasiewicz, T. and Predoiu, L. and Stuckenschmidt, H. (2008) Representing ontology mappings with probabilistic description logics programs. In: SEBD 2008: Sixteenth Italian Symposium on Advanced Database Systems, 22-25 Jun 2008, Mondello, Italy.

Calì, Andrea and Lukasiewicz, T. and Predoiu, L. and Stuckenschmidt, H. (2008) Rule-based approaches for representing probabilistic ontology mappings. In: da Costa, P.C.G. and d'Amato, C. and Fanizzi, N. and Laskey, K.B. and Laskey, K.J. and Lukasiewicz, T. and Nickles, M. and Pool, M. (eds.) Uncertainty Reasoning for the Semantic Web I. Lecture Notes in Computer Science 5327. Berlin, Germany: Springer, pp. 66-87. ISBN 9783540897644.

Calì, Andrea and Lukasiewicz, T. (2008) An approach to probabilistic data integration for the semantic web. In: da Costa, P.C.G. and d'Amato, C. and Fanizzi, N. and Laskey, K.B. and Laskey, K.J. and Lukasiewicz, T. and Nickles, M. and Pool, M. (eds.) Uncertainty Reasoning for the Semantic Web I. Berlin, Germany: Springer, pp. 52-65. ISBN 9783540897644.

Calì, Andrea and Lukasiewicz, T. (2007) Tightly integrated probabilistic description logic programs for the semantic web. In: Dahl, V. and Niemelä, I. (eds.) Logic Programming: ICLP 2007. Lecture Notes in Computer Science 4670. Springer, pp. 428-429. ISBN 9783540746089.

Calì, Andrea and Lukasiewicz, T. and Predoiu, L. and Stuckenschmidt, H. (2007) A framework for representing ontology mappings under probabilities and inconsistency. In: Bobillo, F. and da Costa, P.C.G. and d'Amato, C. and Fanizzi, N. and Fung, F. and Lukasiewicz, T. and Martin, T. and Nickles, M. and Peng, Y. and Pool, M. and Smrz, P. and Vojt, P. (eds.) Proceedings of the 3rd ISWC Workshop on Uncertainty Reasoning for the Semantic Web. CEUR.

Calì, Andrea and Lukasiewicz, T. (2006) An approach to probabilistic data integration for the semantic web. In: da Costa, P.C.G. and Laskey, K.B. and Laskey, K.J. and Fung, F. and Pool, M. (eds.) Proceedings of the 2nd ISWC Workshop on Uncertainty Reasoning for the Semantic Web. ISWC.