@inproceedings{ijcai2003p48,
  title     = {Terminological Cycles in a Description Logic with Existential Restrictions},
  author    = {Baader, Franz},
  booktitle = {Proceedings of the Eighteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-03}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Georg Gottlob},
  pages     = {325--329},
  year      = {2003},
  url       = {https://ijcai.org/proceedings/2003/48},
}