@inproceedings{NavigliVelardi:06, author = {Roberto Navigli and Paola Velardi}, title = {Enriching a Formal Ontology with a Thesaurus: an Application in the Cultural Heritage Domain}, booktitle = {Proceedings of $2^{nd}$ Workshop on Ontology Learning and Population (OLP), in the $44^{th}$ Annual Meeting of the Association for Computational Linguistics joint with the $21^{st}$ International Conference on Computational Linguistics (COLING-ACL 2006)}, year = 2006, address = {Sydney, Australia}, pages = {1--9} }