@inproceedings{PaHo02a, title = "Semantic Web Ontology Reasoning in the $\mathcal{SHOQ({\bf D_n})}$ Description Logic", author = "Jeff Z.~Pan and Ian Horrocks", year = "2002", booktitle = "Proc.\ of the 2002 Description Logic Workshop (DL~2002)", pages = "53--62", series = "CEUR (\url{http://ceur-ws.org/})", url = "download/2002/dl02-shoqdn.pdf", volume = "63", }