@InProceedings{HaTM01,
  author = 	 {V. Haarslev and M. Timmann and R. M{\"o}ller},
  title = 	 {Combining Tableaux and Algebraic Methods for Reasoning with Qualified Number Restrictions},
  booktitle = {Proceedings International Workshop on Description Logics (DL-2001), Stanford, USA, 1.-3. August},
  pages = 	 {152--161},
  year = 	 {2001},
}