@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}}