On the Decidability of Description Logics with Modal Operators
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\begin{bibtex} @inproceedings{DBLP:conf/kr/WolterZ98,
author = {Frank Wolter and
Michael Zakharyaschev},
title = {On the Decidability of Description Logics with Modal Operators},
booktitle = {KR},
year = {1998},
pages = {512-523},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
\end{bibtex}
