@incollection{GuizzardiWagnerHerre, author = {Guizzardi, Giancarlo and Wagner, Gerd and Herre, Heinrich}, title = {On the foundations of UML as an ontology representation language}, series = {Engineering knowledge in the age of the semantic web, 14th international conference, proceedings, EKAW 2004, Whittlebury Hall, UK, October 5 - 8, 2004}, booktitle = {Engineering knowledge in the age of the semantic web, 14th international conference, proceedings, EKAW 2004, Whittlebury Hall, UK, October 5 - 8, 2004}, editor = {Motta, Enrico}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-23340-7}, pages = {47 -- 62}, language = {en} }