Conjunctive Query Containment in Description Logics with n-ary Relations

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\begin{bibtex} @inproceedings{DBLP:conf/dlog/CalvaneseGL97,

 author    = {Diego Calvanese and
              Giuseppe De Giacomo and
              Maurizio Lenzerini},
 title     = {Conjunctive Query Containment in Description Logics with
              n-ary Relations},
 booktitle = {Description Logics},
 year      = {1997},
 ee        = {http://dl.kr.org/dl97/proceedings/calvanese.ps.gz},
 crossref  = {DBLP:conf/dlog/1997},
 bibsource = {DBLP, http://dblp.uni-trier.de}

}

\end{bibtex}