Bibitem:

@inproceedings{Casini11,
 Author = {Casini, Giovanni and Straccia, Umberto},
 Booktitle = {Proceedings of the 22nd International Joint Conference on Artificial Intelligence (IJCAI-11)},
 Ee = {http://ijcai.org/papers11/Papers/IJCAI11-142.pdf},
 Pages = {813--818},
 Title = {Defeasible Inheritance-based Description Logics},
 Year = {2011}}