@inproceedings{ijcai2003p217,
  title     = {Engineering a complex ontology with time},
  author    = {Santos, Jorge and Staab, Steffen},
  booktitle = {Proceedings of the Eighteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-03}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Georg Gottlob},
  pages     = {1406--1406},
  year      = {2003},
  url       = {https://ijcai.org/proceedings/2003/217},
}