@inproceedings{DeNicolaetal:05, author = {Antonio De Nicola and Michele Missikoff and Roberto Navigli}, title = {A proposal for a Unified Process for ONtology building: UPON}, booktitle = {Proceedings of the $16^{th}$ International Conference on Database and Expert Systems Applications (DEXA)}, year = {2005}, address = {Copenhagen, Denmark}, pages = {655--664}, }