. Bienvenu, . Ortiz, M. Bienvenu, and . Ortiz, Ontology-Mediated Query Answering with Data-Tractable Description Logics, Reasoning Web, pp.218-307, 2015.
DOI : 10.1007/s13740-012-0017-6

. Bienvenu, Regular path queries in lightweight description logics: Complexity and algorithms, J. Artif. Intell. Res. (JAIR), vol.53, pp.315-374, 2015.

. Calì, Taming the infinite chase: Query answering under expressive relational constraints, Proc. of KR, pp.70-80, 2008.

. Calì, Datalog Extensions for Tractable Query Answering over Ontologies, Semantic Web Information Management -A Model-Based Perspective, pp.249-279, 2009.
DOI : 10.1007/978-3-642-04329-1_12

. Calì, A general datalog-based framework for tractable query answering over ontologies, Proc. of PODS, pp.77-86, 2009.

. Calvanese, Answering regular path queries in expressive description logics: An automata-theoretic approach, Proc. of AAAICalvanese Thomas Eiter, and Magdalena Ortiz. Regular path queries in expressive description logics with nominals Proc. of IJCAI, pp.391-396, 2007.
DOI : 10.1016/j.ic.2014.04.002
URL : http://www.inf.unibz.it/~calvanese/papers/calv-eite-orti-AAAI-2007.pdf

. Calvanese, Answering regular path queries in expressive Description Logics via alternating tree-automata, Information and Computation, vol.237, pp.12-55, 2014.
DOI : 10.1016/j.ic.2014.04.002
URL : http://www.inf.unibz.it/~calvanese/papers/calv-eite-orti-AAAI-2007.pdf

. Florescu, Query containment for conjunctive queries with regular expressions, Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems , PODS '98, 1998.
DOI : 10.1145/275487.275503
URL : http://www.cs.washington.edu/homes/suciu/files/_F793663539.ps

. Gottlob, Polynomial rewritings for linear existential rules, Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence, pp.2992-2998, 2013.

. Ortiz, Query answering in the Horn fragments of the description logics SHOIQ and SROIQ, Proc. of IJCAI, 2011.

M. Krötzschstefanoni, Flag & check: data access with monadically defined queries The complexity of answering conjunctive and navigational queries over OWL 2 EL knowledge bases, Proceedings of the 32nd ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2013, pp.151-162645, 2013.