@book{baader2003description, address = {New York, NY, USA}, editor = {Baader, Franz and Calvanese, Diego and McGuinness, Deborah L. and Nardi, Daniele and Patel-Schneider, Peter F.}, interhash = {2f372868d92592682a7f7dadae8761e7}, intrahash = {3f3eae59671cd44a37e32b548f8464c5}, isbn = {0-521-78176-0}, publisher = {Cambridge University Press}, title = {The description logic handbook: theory, implementation, and applications}, year = 2003 }