@book{DLHandbook, title = {The Description Logic Handbook}, editor = {Franz Baader and Diego Calvanese and Deborah McGuinness and Daniele Nardi and Peter Patel-Schneider}, publisher = {Cambridge University Press}, year = {2003}, biburl = {http://www.bibsonomy.org/bibtex/26ddb54c2d481630ef5b680811cbe3ba6/marciomr}, keywords = {DLs } }