@inproceedings{Gangemi-etal02-wn,
  author	= {Gangemi, A. and Guarino, N. and Oltramari, A. and Borgo, S.},
  title		= {Cleaning-up WordNet's top-level},
  booktitle	= {Proceedings of the 1st International WordNet Conference},
  year		= {2002},
  month		= jan
}