Data Complexity of Query Answering in Expressive Description Logics via Tableaux

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\begin{bibtex} @article{DBLP:journals/jar/OrtizCE08,

 author    = {Magdalena Ortiz and
              Diego Calvanese and
              Thomas Eiter},
 title     = {Data Complexity of Query Answering in Expressive Description
              Logics via Tableaux},
 journal   = {J. Autom. Reasoning},
 volume    = {41},
 number    = {1},
 year      = {2008},
 pages     = {61-98},
 ee        = {http://dx.doi.org/10.1007/s10817-008-9102-9},
 bibsource = {DBLP, http://dblp.uni-trier.de}

}

\end{bibtex}